Develop Bugs

[Q] Boot loop: Can't enter Firmware Upgrade mode

I'm posting a question as I've spent days searching with no luck.
I have an LG G3 that while in normal use got very hot and turned off. Now it gets stuck at the LG logo and doesn't boot. I tried a normal factory reset but this just goes back to the LG logo and nothing happens.
So I'm trying to get into the download mode "Firmware Upgrade" screen to flash the stock rom. I hold down volume Up, and plug in the USB and it gets to the little "Download Mode" icon but does not continue to "Firmware Upgrade" and the computer (I've tried 3 different systems) wont recognize the phone.
Interestingly at some point while being in download mode it switched to fastboot, I have no idea how this happened but I was able to run commands on the phone using fastboot.exe, however I have not been able to get back to fastboot since.
Also I'd really like to be able to recover the data on the phone.
Any help would be appreciated.

Grymyrk said:
I'm posting a question as I've spent days searching with no luck.
I have an LG G3 that while in normal use got very hot and turned off. Now it gets stuck at the LG logo and doesn't boot. I tried a normal factory reset but this just goes back to the LG logo and nothing happens.
So I'm trying to get into the download mode "Firmware Upgrade" screen to flash the stock rom. I hold down volume Up, and plug in the USB and it gets to the little "Download Mode" icon but does not continue to "Firmware Upgrade" and the computer (I've tried 3 different systems) wont recognize the phone.
Interestingly at some point while being in download mode it switched to fastboot, I have no idea how this happened but I was able to run commands on the phone using fastboot.exe, however I have not been able to get back to fastboot since.
Also I'd really like to be able to recover the data on the phone.
Any help would be appreciated.
Click to expand...
Click to collapse
do you installed latest official lg drivers for your phone and if you have old drivers installed then uninstall these und install the newer and then reboot your computer.
maybe this help.

dusu84 said:
do you installed latest official lg drivers for your phone and if you have old drivers installed then uninstall these und install the newer and then reboot your computer.
maybe this help.
Click to expand...
Click to collapse
Thanks I tried the drivers you've provided but still no luck. The computer won't detect the phone at all, it doesn't attempt to install drivers nor does the phone show up as a generic device.

Grymyrk said:
Thanks I tried the drivers you've provided but still no luck. The computer won't detect the phone at all, it doesn't attempt to install drivers nor does the phone show up as a generic device.
Click to expand...
Click to collapse
maybe anyone can help you but i read in a german forum of someone with about the same problem... the the device reboots stuck at the lg logo and it wont recognize by the computer.
after all the repair service said it was a hardware defect!

dusu84 said:
maybe anyone can help you but i read in a german forum of someone with about the same problem... the the device reboots stuck at the lg logo and it wont recognize by the computer.
after all the repair service said it was a hardware defect!
Click to expand...
Click to collapse
I hope not, this phone was purchased in Media Markt in Germany and it's not covered by warranty here. LG Australia said it would cost up to $260 for them to fix it and the phone could possibly be downgraded if the mainboard needs to be replaced. I don't know if it would be possible to claim the German warranty.

dusu84 said:
maybe anyone can help you but i read in a german forum of someone with about the same problem... the the device reboots stuck at the lg logo and it wont recognize by the computer.
after all the repair service said it was a hardware defect!
Click to expand...
Click to collapse
Hello!!! I need some help I have an LG L65 D280N, and of nothing it turned on and open a pink screen whith a dbi err fatal!!! I tried too flash it with the costum firmware and everything but the problem is that when i tried to enter the firmware update mode the phone just won't enter it!!! I push the volume up wait 3 seconds and connect the usb cable to enter in firmware mode and the starts to vibrate like he is starting, but doesn't do anything, vibrates sometimes and after a wile it starts but enters in the dbi err fatal screen!!! I did some research and I reboot the PC because of the Driver installing, didn't work, I installed another driver and reboot the PC and it still doesn't work!!! I did a lot of research and I can't enter the firmware update mode!!! Please help me!!!

Lg Bridge problem (Update loop)

Hi guys, recently i started having problems with LG bridge update program, after i apply update called "H818N10B (12.14.2015)" and go for "check for updates" LG bridge offers same update again. As if last one didn't matter. On phone in software version persists as "V10b-SEA-XX". I tried to enter "recovery mode" to delete the cache thinking it may be cause of this problem, and i couldn't enter recovery. So i applyed "Factory reset" it didn't help either.
Thanks in advance, and with respect
Sars

UPDATE : Hi all, i was able to enter recovery mode via "adb reboot recovery" but was unable to do anything there. Only exclamation dead android guy was present..:crying: (I tried pressing power+volume up, pover+volume down nothing worked)

sarsdgle said:
UPDATE : Hi all, i was able to enter recovery mode via "adb reboot recovery" but was unable to do anything there. Only exclamation dead android guy was present..:crying: (I tried pressing power+volume up, pover+volume down nothing worked)
Click to expand...
Click to collapse
Still no change today.. Guess ill have to wait for someone to help.. I think i would have sorted this out buy now by soft rooting my G4 but i'm hesitant because of warranty..
Cheers

sarsdgle said:
Hi guys, recently i started having problems with LG bridge update program, after i apply update called "H818N10B (12.14.2015)" and go for "check for updates" LG bridge offers same update again. As if last one didn't matter. On phone in software version persists as "V10b-SEA-XX". I tried to enter "recovery mode" to delete the cache thinking it may be cause of this problem, and i couldn't enter recovery. So i applyed "Factory reset" it didn't help either.
Thanks in advance, and with respect
Sars
Click to expand...
Click to collapse
please unintall lg bridge in your pc and then reinstall n check.

sampathkumar2811 said:
please unintall lg bridge in your pc and then reinstall n check.
Click to expand...
Click to collapse
Hi, and tanx for your reply I did that couple of times thinking i might been using the wrong version of bridge but even after
reinstall and making sure version is for my model (h818n) strange problem persists. I even factory reset my phone 2x times (was able to enter factory reset screen because its out of "recovery mode" witch i can't enter)
Chs

[part-solved]
sampathkumar2811 said:
please unintall lg bridge in your pc and then reinstall n check.
Click to expand...
Click to collapse
Looks like i fixed update loop problem, you were right.. This time i did this for all other who could stumble on this problem.
1. Disconnect phone from pc
2. Uninstall all lg software used for your phone. (!not just bridge!)
3. Reinstall bridge without phone, plug it in and it will ask you to update usb drivers, do so.
4. End
Problem was in windows (my opinion) in driver conflict.. Sometimes when you have windows driver and driver on utility for some software they conflict..
(remember "good" old days when wifi usually had win driver and utility conflict)..
So it was reinstall after all just a thorough one.
Now lets find out why i have dead android guy and cant enter+control "Recovery mode" In 2nd part of solving this tread.
I will thank you for the hint + Help sampathkumar! :good: :good:

sarsdgle said:
Looks like i fixed update loop problem, you were right.. This time i did this for all other who could stumble on this problem.
1. Disconnect phone from pc
2. Uninstall all lg software used for your phone. (!not just bridge!)
3. Reinstall bridge without phone, plug it in and it will ask you to update usb drivers, do so.
4. End
Problem was in windows (my opinion) in driver conflict.. Sometimes when you have windows driver and driver on utility for some software they conflict..
(remember "good" old days when wifi usually had win driver and utility conflict)..
So it was reinstall after all just a thorough one.
Now lets find out why i have dead android guy and cant enter+control "Recovery mode" In 2nd part of solving this tread.
I will thank you for the hint + Help sampathkumar! :good: :good:
Click to expand...
Click to collapse
actually i have given you basic uninstallation scenario.but your analysis is good.one need to remove lg bridge along with lg drivers then reinstall.its better to restart before reinstalling.anyway problem is solved for you.thats great.

SM-T800 Soft Bricked, PC Won't Recognized and "Yes, I already tried that"

Samsung SM-T800 is basically a paperweight.
Out the outset, let me just say that I have already:
-voided my warranty and tripped KNOX (it was rooted before all of this happened)
-Tried different USB ports and USB cables
-Tried different USB drivers
My PC won't recognize it, and I have tried Universal Drivers, and Samsung USB drivers, which means Odin and ADB can't help
I can only boot into download mode
When I tr to boot into recovery, I get the "Firmware upgrade encountered an issue" message
And to add insult to injury, I can't even turn the damned thing off. Every "battery pull" (Power+Volume down) leads back to "Firmware upgrade encountered an error" message
I have been wrestling with this thing for 2 days already, scouring these forums. And every one ends with "Oh I just reloaded my stock ROM with Odin" ARGHHHHH!
Thanks in advance

OK I'm gonna start off by saying I'm trying to help you. If you get smart and angry then I'll leave you to it.
Why am I saying this? Because I've been down this road many times with people saying this that and the other doesn't work when in the end in most cases it turns out to be user error and I can tell you're frustrated.
I've read your post regarding what you've tried but you're still gonna have to bear with it if you want help.
The first thing I need to ask is, you know the difference between download mode and recovery mode? No I'm not trying to treat you like an idiot.
Sometimes the firmware error can be cleared by booting to recovery and wiping cache.
How did you end up in this scenario?
If the above doesn't work the first thing you need to do is put the tablet in download mode.
Connect the USB cable, navigate to device manager, look for something along the lines of Samsung mobile USB composite device under USB devices.
If you see an exclamation mark instead then you will have to manually install the USB composite driver.
Once you see that device listed you are ready to use odin in download mode.

ashyx said:
OK I'm gonna start off by saying I'm trying to help you. If you get smart and angry then I'll leave you to it.
Why am I saying this? Because I've been down this road many times with people saying this that and the other doesn't work when in the end in most cases it turns out to be user error and I can tell you're frustrated.
I've read your post regarding what you've tried but you're still gonna have to bear with it if you want help.
The first thing I need to ask is, you know the difference between download mode and recovery mode? No I'm not trying to treat you like an idiot.
Sometimes the firmware error can be cleared by booting to recovery and wiping cache.
How did you end up in this scenario?
If the above doesn't work the first thing you need to do is put the tablet in download mode.
Connect the USB cable, navigate to device manager, look for something along the lines of Samsung mobile USB composite device under USB devices.
If you see an exclamation mark instead then you will have to manually install the USB composite driver.
Once you see that device listed you are ready to use odin in download mode.
Click to expand...
Click to collapse
First of all, thanx for the reply. I appreciate, and i probably shouldn't have written the post after being up all night and bieng pissed...probably came off a little snarky...
Having said all of that, yeah, I'm definitely in download mode:
(on screen right now)
ODIN MODE
Product Name: SM-T800
Current Binary: Samsung Official
System Status: Official
Secure Download: Enabled
KNOX WARRANTY VOID: 1 (0x0000)
AP SWREV: A1
[Picture of Android icon]
Downloading...Do not turn off target
So, that bit is sorted out
UPDATE: I did not have my SD card in the tablet before...now I put it in and I got the "USB devices not recognized"
I go to Device Manager, find the device with the yellow exclamation, right click,
"Update driver software"
"Browse computer for driver software:
Navigate to "Program Files/Samsung/USB Drivers"
The best software for your device is already installed
Any suggestions?
And again, apologies for sounding like a jerk before
"

UPDATE 2
OK, so I took another swig at it..
downloaded "Samsung USB Driver V1..5.59"
Rebooted
Opened ODIN
[Added]
Started reinstaling firmware
[Removed]
ODIN lost connection and I got the "USB device not recognized message" again
Used a cpl different ports, no change
I am wondering if maybe it is a battery issue at this point? Because as I stated before, I havent been able to turn the tablet off...
Either it is in download mode, or it is in "FIrmware upgrade encountered an issue" on screen
Thanks in advance

Destro728 said:
UPDATE 2
OK, so I took another swig at it..
downloaded "Samsung USB Driver V1..5.59"
Rebooted
Opened ODIN
[Added]
Started reinstaling firmware
[Removed]
Click to expand...
Click to collapse
OK this looks like you have the driver installed so you shouldn't have the exclamation mark in device manager.
You can however install the driver manually.
Right click the device with exclamation mark, choose browse my computer, let me pick from a list of drivers. Look for Samsung Mobile CDC composite device, click next.
Driver should now install.
There are several reasons for the USB not recognized error. Most common is a bad USB cable, bad USB port or driver conflicts.
Ensure the ports are native and not an add-on card.
I suggest a completely different cable first.
Whatever happens don't move the device or cable when flashing.
Also get some charge in the device with the stock charger.
If you still get issues installing the stock Firmware then I suggest trying to install my latest build of TWRP.
With this we have more options and can install the stock Firmware with it.

Thanks for response
Ok, I used a totally different laptop and ODIN worked fine, I dunno what the deal was...but now i have a different problem...
I seem to be stuck in a "Wifi Turning on..." loop
The Wifi never comes on though
I have seen other posts about this, but they all seems to come back to " factory reset" (which I did two more times today) or verify the date on the device (which I have also done)
Is it possible to download a radio image ONLY? Because I am wondering if that is the problem....

Destro728 said:
Thanks for response
Ok, I used a totally different laptop and ODIN worked fine, I dunno what the deal was...but now i have a different problem...
I seem to be stuck in a "Wifi Turning on..." loop
The Wifi never comes on though
I have seen other posts about this, but they all seems to come back to " factory reset" (which I did two more times today) or verify the date on the device (which I have also done)
Is it possible to download a radio image ONLY? Because I am wondering if that is the problem....
Click to expand...
Click to collapse
Most likely a baseband issue.
You need to use the correct firmware for your device and region.
Did you flash the whole firmware?

Yeah, downloaded the whole firmware
Couldn't find version for USA proper...ended up using XEF (which is France I think)
Build number LRX22G.T800XXU1BOCC (Lollipop)

Destro728 said:
Yeah, downloaded the whole firmware
Couldn't find version for USA proper...ended up using XEF (which is France I think)
Build number LRX22G.T800XXU1BOCC (Lollipop)
Click to expand...
Click to collapse
USA is XAR(Cellular South)
http://www.sammobile.com/firmwares/download/64107/T800XXU1BOL1_T800XAR1BOK1_XAR/

Ah, I didn't think I should use that one since my tablet is the WiFi model, not the LTE model
But I will give it a shot!
Thanks!

Destro728 said:
Ah, I didn't think I should use that one since my tablet is the WiFi model, not the LTE model
But I will give it a shot!
Thanks!
Click to expand...
Click to collapse
That is for the wifi model. LTE model is T805.

ashyx said:
That is for the wifi model. LTE model is T805.
Click to expand...
Click to collapse
Ah. The "Cellular South" part threw me off
Unfortunately, still didn't work as far as getting the WiFi and Bluetooth working.
I refrlashed the firmware
Did a cpl factory resets
Still nothing
I'm thinking I should root it and see if some file permissions are screwed up or something. ..
Sent from my SAMSUNG-SM-G870A using XDA-Developers mobile app

UPDATE: I rooted with CF AutoRoot and installed Custom recovery TWRP
did another factory reset
and still no Wifi/Bluetooth
I'm out of ideas at this point....

Destro728 said:
UPDATE: I rooted with CF AutoRoot and installed Custom recovery TWRP
did another factory reset
and still no Wifi/Bluetooth
I'm out of ideas at this point....
Click to expand...
Click to collapse
Did the wifi work before you obtained this device?
If all partitions flashed successfully then the wifi should be working.
What is your baseband build number reported as in settings?
Also check your IMEI no.
If that is the default IMEI instead of the original then someone may have trashed the EFS partition.
By the way are you certain this is a t800 and not a t805 or t807?

The Wifi went out a few days ago, tried a factory reset first
Then I remembered the last time this happened I did a firmware re-flash to fix it
It was during the re-flash where I ran into problems and I came to the forum.
I attached a screenshot. Model definitely SM-T800, but no IMEI and no Baseband build...
Thanks!

Destro728 said:
The Wifi went out a few days ago, tried a factory reset first
Then I remembered the last time this happened I did a firmware re-flash to fix it
It was during the re-flash where I ran into problems and I came to the forum.
I attached a screenshot. Model definitely SM-T800, but no IMEI and no Baseband build...
Thanks!
Click to expand...
Click to collapse
Baseband probably doesn't show because it's wifi only model.
However it's strange there is no Status page.
You can get this info using an app called Samsung phone info on play.

ashyx said:
Baseband probably doesn't show because it's wifi only model.
However it's strange there is no Status page.
You can get this info using an app called Samsung phone info on play.
Click to expand...
Click to collapse
Ironically, with no WIfi access...hahahahaa....

I will try to find the apk and sideload it

I sideloaded the Samsung phone info app...
Attached screenshots of the tablet info

What's immediately apparent is no IMEI number. This is a problem.
Is your EFS folder accessible?

How to go Recovery Mode TCL Android with only power button

Hi all,
Our TCL Android TV (LED32S6500) is stuck into android boot logo after the update. Now I want to go to recovery mode but it does not have volume buttons.
Does anyone knows how to go to recovery mode in TCL android TV? Is there any hidden buttons or reset pinhole in it?
Thanks in advance

try to hold power button for around 10 seconds

fuqi said:
try to hold power button for around 10 seconds
Click to expand...
Click to collapse
It shows dead android logo with Error text.

yea you need to put a fw image/zip on a usb stick. it will start by itself.

fuqi said:
yea you need to put a fw image/zip on a usb stick. it will start by itself.
Click to expand...
Click to collapse
I have found this link but after inserting the usb stick ot says the pakage is failed in blue screen. Do you have the exact firmware where I can download?

leomarbucud said:
I have found this link but after inserting the usb stick ot says the pakage is failed in blue screen. Do you have the exact firmware where I can download?
Click to expand...
Click to collapse
if you can tell me which plattform this tv runs on i might have it.

fuqi said:
if you can tell me which plattform this tv runs on i might have it.
Click to expand...
Click to collapse
It is running Android 8 out of the box this is the model TCL LED32S6500.

tv runs on a realtek plattform
update files are called : V8-R41KT01-*****
wait a bit. i have a restore image (different from regular images)

fuqi said:
tv runs on a realtek plattform
update files are called : V8-R41KT01-*****
wait a bit. i have a restore image (different from regular images)
Click to expand...
Click to collapse
Thank you very much for your HELP! I really appreciate it!

https://drive.google.com/file/d/1BmDN20-vGWxrW-WP48TV6hvA070m_vR7/view
extract it, put the Update.img on a USB and do the Recovery thing. Flashing Screen should be a Blue screen and not the Android one.

fuqi said:
https://drive.google.com/file/d/1BmDN20-vGWxrW-WP48TV6hvA070m_vR7/view
extract it, put the Update.img on a USB and do the Recovery thing. Flashing Screen should be a Blue screen and not the Android one.
Click to expand...
Click to collapse
Thank you! I will update you how things will go.

leomarbucud said:
Thank you! I will update you how things will go.
Click to expand...
Click to collapse
It work! now our TV is back to normal! Thank you very much!

new firmware for you TV came today. "RT41_Android P_V234" should be Android 9 in case you wanna test let me know.

fuqi said:
new firmware for you TV came today. "RT41_Android P_V234" should be Android 9 in case you wanna test let me know.
Click to expand...
Click to collapse
Sorry to hijack someone else's thread but do you know if the S6500 firmware would also work on the S6800S or if it's possible/easy for me to make a recovery image incase i decided to give it a try and it goes bad? current firmware version is V8-R41KT01-LF1V180.006777 android 8.0
Thanks

yea, should work. tcl does only 1 firmware / board.
edit: https://drive.google.com/file/d/1R-FgtW6olF2LgYholx_QnZbSBITz3Vy4/

fuqi . i would love to try your android 9 firmware thx . were to find it ?
ohh i found it nwm

i dont know yet if its really 9. but according to the file i got it should be. but let me know

fuqi said:
i dont know yet if its really 9. but according to the file i got it should be. but let me know
Click to expand...
Click to collapse
it is .. working ok .. nothing really changed but 8 to 9
have you managed to root the tv ?
if so could you make a guide ?

ah nice! thanks for telling.
i only did root the newer plattform (RT51)
but tbh it's not worth it "currently", since you have to disable AVB and SELinux.
you can easily brick your tv and you need special cables... (depending where your serial port is)
should be usb on your model....

fuqi said:
yea, should work. tcl does only 1 firmware / board.
https ://drive.google.com/file/d/1R-FgtW6olF2LgYholx_QnZbSBITz3Vy4/
Click to expand...
Click to collapse
Awesome that's what i thought same chassis RT2841, The above file ^ I assume as it's not an .img i would need to use the built in system update then select local and leave the file zipped on a fat32 usb? I have v229 as a .img but not your v234 as .img.
I just read on 4pda that some people have received v240 via OTA

[Need Help] Bricked Sony Bravia Android TV (KD-55X8000G)

Hi all,
I am having a problem with my Sony Bravia Android TV (Model: KD-55X8000G).
I updated the latest firmware (V6.6555) for Asia Pacific (I am from Singapore). Since then, the TV keep rebooting. So I tried factory reset multiple times but no success. Now the TV is just stuck in the Sony logo without any LED light.
I did some research and found that this symptom means the firmware was corrupted, which eventually led to my TV being bricked.
So how do I proceed in un-bricking it? Is it via the fastboot command via android SDK? How do I solve this rebooting / stuck issue?
Note that my model is out of warranty despite being 2019 model because this was a replacement TV for 800C model and followed the old warranty which expired on Dec.2019.
I checked with my local Sony services and the charges (including replacement of main board) will cost about SGD 600 to 800. So it is not worth the service; I can use this amount to get a new TV.
I find it a pity that the whole TV is redundant due to the main-board / firmware issues; the panel is still in good condition. So I am trying my best to look for solutions without having to seek the costly services from Sony Support.
Thanks in advance!

Hi, just download the latest firmware and install it (latest is 6.6.575) from here: https://www.sony-asia.com/electronics/support/televisions-projectors-lcd-tvs-android-/kd-55x8000g

DallasCZ said:
Hi, just download the latest firmware and install it (latest is 6.6.575) from here
Click to expand...
Click to collapse
Thanks for the info but I already did managed to solve the bricked issue with another method.
However, when I updated to 6.6.575. Many issues from the previous firmware still persist. TV will reboot randomly; some apps will crash randomly too.
Any idea to solve this issue?

how you solved the brick? I think you didn't solved it right when I read the issues you still have.

DallasCZ said:
how you solved the brick? I think you didn't solved it right when I read the issues you still have.
Click to expand...
Click to collapse
This is what I did after researching online:
1) You must first get a flashdrive / thumbdrive which must have minimal storage of 32GB and be formatted to FAT32.
2) Download the latest .pkg file from Sony support for your model.
3) Transfer the .pkg file to your thumbdrive.
4) You attempt a factory reset via power +vol down button. I am pretty sure that you know this method from Sony Support website.
5) If unsuccessful where you encounter the frozen screen, insert your thumbdrive while the TV is powered on.
6) After inserting thumbdrive, power off the TV by removing the power plug.
7) Attempt factory reset with the power + vol. down button again, and just let it run where it will show a white circle (may take up to an hour), this step is actually like a forced firmware update where the TV will factory reset and update from the .pkg file at the same time, hoping that it will re-flash / reformat your firmware properly, but if exceeds an hour, just power off and take out your thumbdrive.
8) Power on your TV again, and after a few minutes, it should be able to proceed to your welcome screen. but note that it will reboot again for second time, so don't enter any information for the first time.
9) For the second welcome screen, just ignore and skip all the settings until you come to the home screen.
10) At home screen, you just go setting and try to find the factory data reset and select that option.
11) After factory reset, just do all the settings shown in the welcome screen.
12) You are good to go.

Kennylyk said:
This is what I did after researching online
Click to expand...
Click to collapse
but do note that I am still having random reboot after upgrading to the latest firmware.
When at previous firmware, I had random reboot, so I did factory reset many time but to no success. Keep factory resetting until it suddenly became bricked.
This explained why I was asking here for advice to solve the brick, but few days later I managed to research and came up with a method in attempt to bypass the bricked / freeze screen which was successful.
but now it is the random reboot which I am unable to figure out.

Do you have some Harddrives or some peripherals connected to TV? Have you done the step 10 in the guide you posted?

DallasCZ said:
Do you have some Harddrives or some peripherals connected to TV? Have you done the step 10 in the guide you posted?
Click to expand...
Click to collapse
I have a flashdrive with the update .pkg file connected to the TV.
Did factory reset but the problem still persist.

Kennylyk said:
Hi all,
I am having a problem with my Sony Bravia Android TV (Model: KD-55X8000G).
I updated the latest firmware (V6.6555) for Asia Pacific (I am from Singapore). Since then, the TV keep rebooting. So I tried factory reset multiple times but no success. Now the TV is just stuck in the Sony logo without any LED light.
I did some research and found that this symptom means the firmware was corrupted, which eventually led to my TV being bricked.
So how do I proceed in un-bricking it? Is it via the fastboot command via android SDK? How do I solve this rebooting / stuck issue?
Note that my model is out of warranty despite being 2019 model because this was a replacement TV for 800C model and followed the old warranty which expired on Dec.2019.
I checked with my local Sony services and the charges (including replacement of main board) will cost about SGD 600 to 800. So it is not worth the service; I can use this amount to get a new TV.
I find it a pity that the whole TV is redundant due to the main-board / firmware issues; the panel is still in good condition. So I am trying my best to look for solutions without having to seek the costly services from Sony Support.
Thanks in advance!
Click to expand...
Click to collapse
When is rebooting - you hear the power source relay as well? is shouting down completely and after that he restart?

Dont know which tool to use in warranty technician of Sony to fix brick device