Msi laptop black screen after msi logo. remove one additional regular screw and the two hexagonal spacers under the cover. Apr 22, 2024 · Step 1: Reboot your MSI device, and when the MSI logo appears, press the F3 key repeatedly to access the Windows Recovery Environment. ) 1) Turn off the notebook and unplug AC adapter, and then wait for at least 7. I just have to press and hold the power Jan 8, 2023 · Start with the optical drive, just pull the SATA cable from the board. i have done new clean installation of OS from medial creation tool NO RECOVERY. After a lot of failed troubleshooting, I reinstalled Windows 11 as a clean install. Sep 19, 2023 · I press DEL when I boot up and get a black screen. Apr 6, 2022 · I am having the same problem with a Optix MPG321QRFDE QD. C. " Step 2: On the next screen, opt for "System Partition Recovery. Mar 25, 2019 · Approximately one year later I randomly checked my device manager and found that there was an exclamation mark on one of the graphics driver so I just downloaded it and installed the driver again and then my screen just froze and when I restarted my laptop, my screen went black after the windows logo and I tried to resolve it by using automatic Jul 7, 2022 · Hi. Press and hold the power button for 60 seconds. Use DDU to clean install Intel & Nvidia Graphics drivers on MSI website. Although I can press enter or F10 and I do get to reboot the PC. From the options screen, choose “Troubleshoot > Reset this PC”. If I start the laptop without the second screen I get black screen and some green line artifacts. Apr 3, 2024 · 1. drek4 said: Open laptop, remove power battery, remove CMOS battery, remove RAM, try EC reset, re install everything then hold power button 20-30 seconds, plug in again and turn on laptop. When I reboot without external monitor, the MSI logo flashes for a brief moment and then its black. Sep 12, 2023 · Still no luck, however, the screen did turn off, and then briefly show the msi logo, but then it just went black, with the PC still on. Aug 9, 2015 · When MSI is rebooting do the 3-fingered-salute (CTRL + ALT + DEL) and it should take you back into the APTIO SETUP UTILITY screen. MSI GS65 screen went black when watching a video, everything else (keyboard, fans, usb transfers) works and I can see with an external monitor connected. When restarted gets inro automatic repair which also gets stuck. I tried the GPU switch button on left hand side (directly under power button). Use the external monitor to cross-check and check if there is MSI logo shown after turning the laptop. I have to hold the power button until laptop switches off. after a few minutes with black screen and orange led, the device shuts down, and reatart automatically. At the login screen, hold Shift, click the Power icon, and select Restart . Reset Your PC to Fix Laptop Black Screen Press the Windows logo key and L on your keyboard. Jan 13, 2023. -When I start the leptop, the black screen comes on That being said any tips are EXTREMELY appreciated I really need this thing tomorrow for classes, thank you in advance. Will try tmr again but this is not normal. Closed game. Now when I start up the laptop - the MSI start up screen appears - then a black screen (no cursor at all). Hello, I have an MSI GL62M7RDX laptop, I recently upgraded it to a NVMe SSD, after 2 weeks of using, the screen started to not work after booting the laptop. It turns on and I can see desktop when I connect Dec 10, 2015 · 1. 1) Video TDR Failure amdkmdag. remove the Sabre metal cover. I connected my laptop to my tv and it works. Computer is on (power lights are on) but screen is black and will not fully boot. Any idea why this is happening? Thanks. The problem went away and I reinstalled all of my applications fresh. seconds. I purchased the laptop in '15 and the indicator light are over on the right side. Now, when I turn my laptop into sleep mode and try to get back to work, the screen stays black. turning the computer off for an hour to see if it would work when I came back. I cant seem to get past that. rename the file to MSI. Press F5 to select Safe Mode with Networking. reset EC. Refer to the following instructions for details. unplugging charging cord and pressing I came back and it was on the MSI Boot logo. The Device Manager shows a correctly installed display adapter (i. The BIOS is working but keeps booting back to BIOS screen. I did and my laptop worked like a charm. The screen is on, but black. i tried to reset the EC. I pressed the CMOS reset button and now it doesn't power on at all. Aug 3, 2020 · remove the bottom cover of the laptop by unscrewing all the screws as shown on the disassembly video. Hi, My laptop powered off just fine last night and when I turned it on this afternoon, it is stuck on the MSI screen (white MSI logo with black screen). And it went black. No problems observed during installation. 2 SSD (i know it won't boot without it, just to see if it's involved). Dec 10, 2015 · 2. I tried the following, none of them make a miracle. Hello, I have a MSI GS63VR 7RF Stealth Pro and the boot time has a delay of ~10 seconds before the MSI logo appears. Nov 21, 2017. Mar 9, 2023 · New member. 6- Again tried different power on/off combo holding down power button for 30 secs to 1min even few times. Disconnect signal cable, monitor show logo No signal or not ? Jun 24, 2022 · Hi people, I got this problem with my MSI Katana Gf66, I'm using Windows 11 btw, I don't know why, but my laptop screen keeps turning black when I am plug and unplug my charger, it's new laptop, just been using it for 1 week, all driver were updated, bios also updated, been trying all suggestion out there, using CMD, reinstalled my graphics May 6, 2013 · I've downloaded and (after removing previous driver) installed the latest MSI driver. Mar 7, 2023 · I downloaded from the official site the Windows ISO in a flash drive to reset the pc and do a new installation from scratch but after I enter the activation key and everything, there is a moment during installation that PC needs to reboot and there is when it get stuck at the MSI logo again. Dec 10, 2015. Oct 12, 2017 · When power on laptop, only black screen. Soon after that the screen went black, at which point I got worried and decided to press and hold the power button to force a shut down. Feb 23, 2024 · 2 x 24 inch AOC IPS panel monitors connected via Displayport (video card end) to HDMI (monitor end). . The next start is Nov 7, 2020 · This is a 4 year old laptop with GTX1070 with the up to date drivers. But again after restart the black screen reappears. Whenever I start the laptop up it loads to the MSI loading screen but shortly after will turn to a completely black screen, even though the laptop is still powered and running, you can still here the windows sign in page pop up and the laptop appears to be running fine. uninstalled and installed HD drive. If I connect external monitor, I shows that there is no signal detected. holding, tapping or pressing f2 to open some kind of menu (menu didn’t open) leaving the computer running for 30 min to see if anything happened. (Please choose one of methods to operate the process. Nov 29, 2023 · 1. We stand by our principles of breakthroughs in design, and roll out the amazing gaming gear like motherboards, graphics cards, laptops and desktops. Now, a few days later, sometimes the Dec 21, 2018 · Try shining a torch at an angle close to the screen to check if there is a display showing on the laptop screen after it has been turned on. No problem to switch from using Nvidia GTX 980m to Intel HD 530 after reboot cycle. B. 2. Computer turns on but NO MSI logo and NO chance to boot to bios. Apr 25, 2024 · Here's how to manually initiate and use Automatic Repair: Step 1: Shut down your computer and then reboot it. Connect an external monitor if the laptop display is not visible, or refer to the steps below to boot into Windows safe mode. #14. even that didn't work. Then lastly machine reboots and black screen, not even back light. Since then, it just stays at the MSI logo screen and doesn't respond to any Apr 5, 2022 · I bought a GS76 Stealth about a month ago now and started to experience problems. #4. 11. Restore the BIOS settings. First, anytime I try to restart from sleep mode it seems to start but the screen remains black and nothing happens. Just bought an MSI GT72S 6QE Dominator Pro G installed all automatic updates and all of my drivers are up to date as far as I know. Apr 8, 2017 · 1. Jan 13, 2023 · 1. The issue: - Turning on after sleep mode results in a black screen - Issue sometimes resolves after manually rebooting drivers (ctrl+alt+shift+b) Dec 7, 2016 · Dec 7, 2016. Nov 7, 2018 · The screen stays black before the msi logo shot be showed. when i reboot, it freezes with a black screen, even msi boot logo does not appear => Do you use the external monitor to cross-validate and check if the black screen only happens to the laptop's display? 3. You can switch to Discrete GPU mode through the Advanced Admin Bios when the Intel Driver causes your screen to black out. Mostly because the screen before the Red MSI logo shows up lags, normally I would restart, screen goes black and after 5 seconds the MSI logo would pop up, then the windows loading circle, and 10 seconds later I am into Windows. 1-1. The keyboard illuminates as normal, but no images/log in on the laptop screen at Feb 8, 2022 · 1) disconnect the AC adapter. I can't properly start the computer with the second screen plugged - the MSI logo shows on the second screen but after that loads everything goes black. This could be either a faulty backlight power May 25, 2024 · Restart your computer. Dec 29, 2022 · I didn't toggle any tabs in overclocking or fans, but about a minute later suddenly the laptop became unresponsive, the mouse cursor would slightly move with a delay of about 15 seconds. So I AM IN THE BIOS. But the Device keeps stop running. If it does not light up then the EC has successfully been disconnected from the battery. I reinstalled Windows, did a driver update from the manufacturers' websites. Nov 21, 2017 · Messages. Sep 18, 2023 · 1. This system was working before the flashing of the BIOS so that has to the cause. The chip itself has a small circular indent, on the face, that notes pin 1. Since then it used to start sometimes and after using laptop for a while again it would show those color dots and it would go black. The MSI boot screen shows up for a long time (45s), then I get a black screen. I wrote MSI support and they told me to reinstall Windows. Eject the battery from the machine. Lastly, reassemble and reboot the laptop. 3) try pressing the power button once more. The laptop is still running. 5) press the on button again and see if something works. Problem: Screen goes black for 2-3 seconds while normal working after opening software like camera, amd radeon software, etc. Suddenly screen was showing small color dots all over the screen something like broken screen. Oct 14, 2021 · Oct 14, 2021. If the problem only happens on the built-in display, it might be related to the hardware issue, then you have to send the laptop to the service center for repair. Change signal cable, change other video input. The next start is I don’t know very much about computers, but here are some of the fixes I tried. *Note: If the RAID-related setup (Intel IRST & Intel VMD settings) is Apr 24, 2017 · Everything is thoroughly updated except integrated gpu drivers, which may be my problem. A common reason for display issues on your MSI computer is a RAM stick that has gone bad. Tried rebooting, disconnect the charger, nothing works. 4) tried resetting the EC with a pin for 30 sec and 10 sec cool down and again 30 second pinning. N. Really annoying and no fix found yet. Feb 27, 2023. Jan 16, 2024 · Windows 11 gets stuck on msi logo while booting. Three days ago, I switched my GE76 Raider 11UH to Discrete Graphics Mode. Reboot and freezes on black screen again. I have a brand new GP72 (Leopard Pro-495) that I am having a problem with. I have an MSI Modern 14 and early this morning I noticed Jan 11, 2022 · Fix 5. Then go to a single RAM module in slot A2. If I have an external monitor, the screen will be black as well (it's getting a black screen signal). 4) connect the AC adapter. It will be very faint so try it in a darkened room as a help to see. Another solution might be to just update graphic drivers. Keyboard backlight button and fan speedboost button are working. GT 610). I have tried: - push Battery Reset Hole - push power button 30 sec. Then, you could power on the laptop again. 1. Jan 29, 2021 · The computer during waking up for some time lasted in a state of suspension, the disk blinked, the screen remained black. If I power or wake the laptop up while it is plugged in, it works perfectly. From the "Choose an Option" screen, select "Troubleshoot" and then choose "Restore MSI factory settings. 119. Turn off, boot and go into bios, everything looks fine, all default settings, save and reboot. Kinda seems like either your Windows install got corrupted, or your SSD is dying. I get the "Attempting Repair" message and/or the Windows recovery/repair option screen. Cant start up in safe mode because I cant see anything. To fix it, perform a power drain. I tried resetting pc and clean install also. with EPS12V and ATX power connected, power up and press the flashback button. If your MSI laptop won’t turn on, it is likely due to static build up. With external monitor on reboot, MSI logo flashes Finished a total warhammer 3 seasion. Again, your system will restart and present you with different options. So I cannot do a new windows install either. Sep 28, 2021 · I bought a GS75 Stealth 10SE laptop but when I am trying the first start, the screen remains black without showing the MSI logo. Laptops with panels that support multiple refresh rates setup may experience momentary black screens when connecting or disconnecting the power adapter. 2) Video Memory Management internal. No video until Windows login screen appears. Jan 23, 2019 · 3) Tried keeping the laptop on for about 15 minute thinking it might connect to WIFI automatically in case the Screen is gone. Check the video source: Make sure that the monitor is properly connected to a video source, such as a computer or a gaming console. Reset your PC by holding the “Shift” key while you click the “Power” button > “Restart” in the lower-right corner of the screen. In this video, we show how to diagnose and repair this problem. #3. Unable to use startup repair or repair using windows 11 bootable usb drive. Turn off and unplug it. I've looked around for answers and tried opening it up and removing the battery and replacing it, that didn't work. +The leptop fan is working. Hold R-CTRL, R-SHIFT, L-ALT, and press F2. e. Nov 4, 2020 · Nov 5, 2020. After a few, sometimes several minutes, it displayed a blue **INTERNAL_POWER_ERROR** screen. rom from MSI website it wont boot, because thats only an update capsule, you need to go over win-raid or badcaps and request a full BIOS dump, or pay a couple $ for it on vinafix. 2) press the on button for 30 seconds or more. Seems like a display driver issue. Monitor is connected to either MB's (MSI 450M PRO-VDH) HDMI or the card's HDMI (MSI RTX 1660 Super) (it's a pre-buil MSI MAG META 5 PC), but the BIOS screen is nowhere to be seen. Hi, when I power on my MSI monitor (MSI MPG341QR), it shows MSI logo on the screen and after that, it wont show anything (just black screen). The laptop would power on/power off but no still no display and keyboard does NOT lit up also. If it is not, the monitor may go black due to a lack of power. Jul 3, 2019 · Jul 3, 2019. Mar 7, 2015 · So My bootup used to take about 10 seconds, now its about 45 seconds. This black screen is considered to be a normal phenomenon due to the changing refresh rates that are meant to provide better power efficiency when the AC power is unplugged. I'll have to check which setting in particular, but you may find it before I reply again. K. i removed the battery and i removed the pluck of the cmos battery over the night. 2 was stable for me. Remove the AC adapter and insert the straighten paper clip to [Reset hole] which is located at the left/right side of notebook or the back cover. If possible, keep an eye on the power button, there should be a light, with orange means it's on the dGPU and white means it's on IGPU. Put the bios chip on it, noting that pin 1 of the chip is lined up correctly. Skill RAM stick at once : same result with both of the sticks. doesn't happen either. I think I may have interrupted an update halfway through. And so right now my GT72 is useless. Wait a few seconds and return the battery to the machine. Oct 8, 2015 · Oct 8, 2015. Apr 3, 2024. I tried moving my mouse, keyboard, nothing would get it to respond. Since this point, I have never been able to enter BIOS. I've rebooted several times, I tried adjusting the RAM like the sticky post said about If you Nov 5, 2020. Oct 10, 2021 · 1- I updated the bios : same result (black screen) 2- I tried to put one G. 6 UHD OLED RTX 3080 i7 16GB/8GB. Because the screen is black there seems to be nothing I can do to fix the device. May 28, 2023 · The battery indicator on the laptop lit up (solid white), and the laptop did power on BUT black screen. This breaks the warranty seal. remove two that hold the Sabre HiFi metal cover. The OS is installed on the NVMe SSD that came with the laptop. I've had the MSI GT72 for only 2 weeks. . an LED near the area should start blinking. And then put that board into the socket. uninstalled and installed memory sticks. stop code system thread exception not Dec 10, 2021 · Here’s how to fix it. the machine start up and there are couple powerups and MSI logo appears to screen couple time. 1 to Windows 10) that is stuck on the MSI logo/splash screen. Not even the MSI logo appears. No bios/UEFI logo splash when Windows 11 is rebooted. remove the CPU and RAM, insert the USB stick to the USB port closest to the PS/2 port. Just the blinking power led. Open the back case and remove the battery. Upon my first time pressing the GPU switch button to switch to integrated gpu; the laptop will boot to MSI logo and I can get to/see BIOS, but after MSI logo splash the screen is black. after that (playing game), pc should go to sleep after 10 min but instead, it shutdown immediately => Did you see the power LED is off? 2. #1. Chose a random place and presses enter and just like that the PC would boot! But I still cant enter my BIOS - there is no MSI splash screen or anything that says what to press - just a "b2" in the bottom right and then Windows splash screen and its booted up. After the MSI logo appears the loadt to Win10Pro64 is almost instantly. There have been reports from MSI's repair depot here in the US of problems with video out after waking up from sleep mode/hibernation/monitor sleep. Jan 24, 2022. Step 3. The AMD 22. Then I switch it on again and it boots normally. Hello friends model number: my leptop, which is an msi GP70 2PE Leopard, did not open this morning in a way I never expected, my leptop did not receive any blows, no liquid drinks were spilled. 3- I combined each of the G. When i push power button down for 30sec and then release and click power. Additionally, I did an update using Driver Booster. Jan 17, 2014 · EDIT: I got a blue box before black screen with no text - just a selection bar. by following the instructions. Solder the two four pin headers to that green board. +The power button light is on. On the cover it has a red shield with a dragon on it and the words "gaming Nov 5, 2021 · As a world leading gaming brand, MSI is the most trusted name in gaming and eSports. Trying to solve the problem by myself, I saw that actually the screen is on but doesn't have brightness (but it's almost like off) . Then when I try to start it again it boots to a dark screen (after the MSI logo) with the pointer frozen in the middle of the screen and I have to hard stop again. Step 2: Go to Troubleshoot > Click Advanced options > Automatic/Startup Repair. Jun 3, 2016 · OK - Given what you have described, one option will be to complete a hard reset - that is: Turn off the Laptop. Previously when I turned on the laptop it booted into the bios, I didn't pay it much attention and just exited the bios. 5) Removed HDD + SSD and tried booting up but same problem. Also try a different HDMI cable, and look into the HDMI port with a flashlight to see if anything is odd in there. If I power it up or wake it up with the power cord disconnected, the screen is totally black. Nov 4, 2015. If yes, try to clean up the graphics drivers (both Intel & NVIDIA) and the related drivers with DDU, restart the laptop and check again to see if the screen goes back to normal. Mashing delete when WIndows reboots Shut it down so I could download the drivers on a flash drive. Screen flashed to black, often does this when seitching off intensive gpu task to go to igpu i believe. May 25, 2019 · The problem is twofold. We Oct 22, 2015 · The green pcb is what you will put the bios chip on. 3. Crashed many times in 3 days (sudden shutdown and start) showing errors. " Nov 3, 2019 · I was streaming via HDMI to our TV with the laptop for a few hours - it then went to sleep (through inactivity) after being disconnected to the HDM Icable. Try repairing your Windows install with an install pen made using Media Creation Tool. When you see the message as the screenshot below [update completed], please do reset EC firmware. The options menu does not display, turning on and off has no MSI logo,. Jan 15, 2021 · When you power on the laptop, can you see the MSI logo? What have you done before the situation (black screen with cursor only) occurs? Check if you can enter Safe mode. I went to update the BIOS and the laptop shut itself down, probably because it overheated. I have to hard stop it. Restart the laptop and press “Delete” when the MSI logo shows up. No MSI logo. Hi :) Just checked on YouTube and someone suggested in the comments section to turn off the PC then turn it back on and to repeatedly press f7. My screen turned Black while I was gaming. MSI Bravo 15 Ryzen 5 5600H AMD Radeon RX 5500M. The red keys get illuminated and the fans start working indicating that the laptop is working yet the screen is completely black, not even a bit of light. This happens regularly where I start up the PC: I briefly see the MSI logo (which is for the motherboard) and sometimes the screen will just stay black UNLESS I go back and unplug/replug the display port connection OR force shutdown the PC and start it up again where it works fine. To resolve the issue I must use a programmer Jun 3, 2020 · I got a brand new GS66 Stealth 10SE039-US laptop, which has faced an annoying and frustrating problem: Every time I put the laptop to sleep, it turns back on, but the monitor does not turn back on. Whenever I play games that causes the FPS to drop under a certain amount the screen starts to Flicker on and off OR Flicker black screen, It happens when watching videos in full screen paused. Request. Sep 13, 2019 · So my MSI Laptop is starting up but the screen stays black. Hi all, I recently got a used MSI Bravo 15 laptop from an auction. Boot loop: turns on and off from the MSI logo. 7- Left it charging overnight. I bought the laptop a couple months ago, today I was on it and randomly it black screens so i restart and when it loads up I see msi logo and theres a flashing line on it and then it just cuts to black and now the display doesn’t work. Nov 4, 2015 · 4. A. Dec 4, 2019 · HI i have a GL62 7QF MSI laptop and i have been experience this weird problem for a month when i start my laptop right after the MSI logo the screen will go blank but Apr 6, 2020 · same problem here on [font=open_sans-semibold sans-serif]GS40 6QE-090 starting laptop no problem as soon as i hit restart get stuck on MSI screen. sys. Hold Shift+F8 while turning the laptop on again for the first time. Then take out the M. MSI GS66 Stealth laptop display stopped working. walterwood4155f02e2 said: I just flashed my B550 M Pro VDH Eifi with that same BIOS and it now stops booting at the BIOS screen. Besides that everything runs like a charm. Nov 21, 2017 · After the laptop has been opened after sleep mode, there is no MSI loading screen, but an illuminated black screen as well as an occasional flashing white screen with red, green, and blue pixels apparent. Jun 25, 2021 · For your information, no MSI logo ans no external display either after pressing the power button. Feb 27, 2023 · Messages. Jan 13, 2018 · The instruction is a bit unclear at this point: 14. Hello, I have a MSI GeForce RTX 3060Ti Ventus 2X V1 LHR 8GB card and a MSI Pro z690-a wifi ddr4 motherboard. May 20, 2024 · If a black screen or screen flicker happens after updating the latest Intel generic driver, roll back the Intel Graphics Driver released on MSI website. Hi I recently bought the MSI CRETOR 15 A11UE-491 laptop, when I turned it on for the first time the screen froze with the msi logo, when entering the recovery mode F2 the screen also froze, I tried to install windows through a USB and the screen also freezes, sometimes I get these errors. [/font] Jan 24, 2022 · 3. After upgrading to Windows 11, the screen began flashing every few seconds. Wait 10 seconds and connect the AC adapter. Furthermore the 'Live Update 5' report shows that most recent drivers are installed. Go to the advanced column in the Bios. Preboot tools such as Windows Memory Diagnostics and Advanced options result in completely black screens. If there is a display visible on the screen, then you have a display backlight problem. Freezes on msi logo. If it switches anytime during gaming, that could be it. Hello everyone, So, I have a MSI GS60 (2PE-052, updated OS from 8. I turned it off and the back on and was greeted with the MSI Splash and the words Preparing Automatic Repair. Method A. Once restarted, select Troubleshoot > Advanced options > Start-up settings > Restart. Jul 11, 2018. with latests version of Win10 i thing must be something wrong with windows maybe they release bad update as they do it every month. Oct 10, 2023 · When I switch my laptop (MSI Bravo 15) on, I see the loading screen and then it shows black screen instead of login screen. Booted it up, flashes msi logo, and black screen. What did you program into the BIOS chip? If its the . Skill 16gb ram with the Samsung 8gb ram that i had already : the pc boot normally and works perfectly showing 24gb in system informations (at this point i was sure that nothing's Nov 19, 2021 · Nov 19, 2021. Brand new Creator 15 Pro 15. Jul 11, 2018 · Messages. I have tried clearing cmos with the jumper and with the battery. copy the latest BIOS to the stick. Mashing delete when WIndows reboots May 19, 2022 · May 19, 2022. Mar 16, 2015 · It still showed the white - or _ after leaving BIOS, I thus had to power off and on the again. Feb 24, 2024 · 1. It does not appear on my desktop pc over DP, but when I connect the laptop via USB c the screens starts turning black once in a while. Is there anything else that I could do to try and fix this? Sep 19, 2023 · I press DEL when I boot up and get a black screen. When you see the MSI logo on your screen, press F3 or F11 repeatedly until you navigate to Windows Recovery Environment. Check the power source: Make sure that the monitor is properly plugged into an electrical outlet or power strip. So i have got a MSI Bravo 15 B5DD laptop. +The charging light is on. Click to expand get a smaller usb stick, format with fat32. Aug 19, 2022 · Aug 19, 2022. I cannot enter safe mode or bios either. I was using my laptop. It would power on but show nothing on the display. After entering the BIOS menu, go to the “Save & Exit” tab and select “Load Optimized Defaults” then select “Yes”. i even tried to bootup the device 1 time Oct 27, 2023 · Unable to enter the Windows system. Except screen doesn't come back so this is not normal. Now, when I switched from Intel HD 530 back to Nvidia 980M, at first reboot cycle the following has happened: 1. White screen out is the typical result, but your no video (minus the RBG flashes) is what I was experiencing after waking the monitor of my GT73VR 6RE. ROM. zi pa il ck um ce dg vy nn tr