Related
Hey guys, I bought an 8525 on ebay today with the following problems:
* Fail Test Call
* Bad LCD
The seller wrote "The phone Powers Up in that the light in the Upper Right Corner lights up but nothing appears on the LCD screen so I have no idea if the LCD is Good or Bad."
Do either of these issues seem like anything any of you have encountered/overcome? I'm more worried about the LCD think than the failed test call because I'm pretty sure flashing a new rom/radio will fix that issue assuming it is an issue at all. All help will be appreciated, thanks guys.
nobody? come on guys i have looked through these forums and haven't found any solutions... any ideas at all would be helpful. thanks..
chbearsrock said:
Hey guys, I bought an 8525 on ebay today with the following problems:
* Fail Test Call
* Bad LCD
The seller wrote "The phone Powers Up in that the light in the Upper Right Corner lights up but nothing appears on the LCD screen so I have no idea if the LCD is Good or Bad."
Do either of these issues seem like anything any of you have encountered/overcome? I'm more worried about the LCD think than the failed test call because I'm pretty sure flashing a new rom/radio will fix that issue assuming it is an issue at all. All help will be appreciated, thanks guys.
Click to expand...
Click to collapse
Did you try powering up by soft-resetting? My phone failed on me, only once (to date), where the normal power-cycle button didn't work. Using the stylus in the reset-hole turned it on, and I then hard-reset and restored from a backup, and everything was fine again.
To see how much of the device is working, why not hook up to ActiveSync and see if anything other than the LED is working? If so, using some remote control SW (if you can install on the device) might let you test some of the functionality. MS Remote Console Display only requires a single executable file on the device (which you could place there with AS), but I don't know how you'll get past the initial startup and setup clicks.
It sounds to me like you might have bought a device that could be more suited to parts farming, if you're not up to opening it up and doing some micro-surgery. I wouldn't gamble on the test call being fixable with a radio rom flash, but heck, it's worth a shot. But then again, I might just be being pessimistic.
Good luck in your endeavor,
-pvs
PS: You might want to have a look at this thread. Sounds like it might be a similar issue, although it has not led to a successful repair. :-(
thanks for the response! i hope that the reset button is the solution to my problems...wouldnt that be great? i'm not opposed to opening the phone up (i assumed i would have to) so if that doesn't work i will open it and make sure all of the ribbons are in correctly...not sure what else to do...thanks for all your advice though i'll be sure to follow your steps as soon as i get the device (hopefully by saturday).
i'll keep this post updated.
ok so i said i would keep this post updated (though i don't think anyone read it to begin with) so here's the update. I got the phone in the mail yesterday and it turns out that it does not turn on at all. When I plug it into the computer I get the red light (indicating no battery) but none of the fixes seem to work. I thought it would be a firmware thing but i'm now guessing that its a hardware issue, meaning i dont know where to begin. Unfortunately it looks as though its going right back on ebay...
tsk i upgraded the radio version after i fixed my phone to work invariably better from when i got it. i was so happy it was stable. i plug it in my usb and happily transferring files. i leave it and i come back decide to see what the fuss about the radio is so i decided to upgrade to the file HERM_Radinly_1.43.00 ... after successfully loading, not for long about 5 more mins plugged poof! disconnect sound. lcd faded. phone fried no red light when plugged. have two batteries so it's not the batteries. not the connections either. nothing. dead. tsk... and i was so excited.
chbearsrock said:
ok so i said i would keep this post updated (though i don't think anyone read it to begin with) so here's the update. I got the phone in the mail yesterday and it turns out that it does not turn on at all. When I plug it into the computer I get the red light (indicating no battery) but none of the fixes seem to work. I thought it would be a firmware thing but i'm now guessing that its a hardware issue, meaning i dont know where to begin. Unfortunately it looks as though its going right back on ebay...
Click to expand...
Click to collapse
I for the life of me cant figure out why my camera is completely dead! I have FULLY wiped all caches,everything under 'WIPE' via AMONS and even formatted my SD card as well as trying an alternate SD card(both 8GB--C6speed)--never had a problem w either card on ANY ROM...ALL OF A SUDDEN the past 2days my camera goes to a FULL BLACK SCREEN,when pressing the CAMERA icon. Occasionally the taskbar will remain uptop but will timeout when screen display shutsoff. Now if i launch CAMERA via DESIRE ROM(KING),ill get the notice about clicking trackball to resume camera but as soon as i click it,the message dissapears and the screen will go back to black screen again...and repeat. I SWEAR i have DONE MULTIPLE COMPLETE WIPES AND REFORMATS so im left to believe its THE HARDWARE itself! CAN ANYBODY PLEASE LEND ME A HAND IF the similar problemhas occured...On the Nandroid backups that ive restored from FULLY FUNCTIONING bkups,if i launch NEXUS TORCH it will say CANNOT ACCESS LED---this is THE ONLY info besides the "camera wake message"mentioned earlier that i can provide. Thanks in advance and pleas edont flame for NOT being in Q&A bc this is more of a DEV related restore question.
**oh and BTW--I DID TRY TO INSTALL the DESIRE R2 cam fix and does nothing. I tried it when all was working fine early in the week and it did nothing to help FLASH timing for me,so i NAN restored back to prior state and CAMERA continued working until about THURSDAY night--regardless--PHONE is in OUT OF BOX STATE--MINUS UNLOCKED and it STILL doesnt work!---PEACE and Happy Mothers Day to any Mothers out there in XDA world!
***Captain Obvious to the Rescue!!***
Your hardware has malfunctioned. Contact HTC for a repair.
1. you may have a broken camera, try a stock rom
2. your caps lock button is definitely broken
3. you posted in the wrong section
ghostrida said:
1. you may have a broken camera, try a stock rom
2. your caps lock button is definitely broken
3. you posted in the wrong section
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Click to collapse
1. i should have known you were from Philly and cant read--I TRIED STOCK ROM
2. CAPS is to put highlights on key terms so idiots dont read over the fact that I DID TRY STOCK ROM---see how that helps?
3. Thanks for your informative responses---any suggestions from CAPTAIN OBVIOUS how to get service on a ROOTED device without being charged full price on the phone?? Ahhh--thought not!--So i tried here to see if anyone else had similar situation. AGAIN-thanks for your help as well SERIAL TOON--geez
If it's a hardware failure they won't charge you.
I think it will help if you go through Google Cust service first...they will end up redirecting you to HTC repair. Provide all truthful information on your issue, proving that you have done some legitimate trouble shooting and they will realize that it is a hardware issue, not the ROM flashing or bootloader unlocking that caused the problem. Someone else on the xda forums had a rooted phone with bluetooth problem and was able to send to HTC for repair for free...with a 4 day turnaround!
Good luck!
What do you base this on...Heresay?
BlueScreenJunky said:
If it's a hardware failure they won't charge you.
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Click to collapse
I didnt intend to sound rude,im just a little pissed right now..I Only ask bc i already had an issue in January days after receipt of phone. Issue was solved by sending me a new battery bc other was causing random shutdowns (ive since forwarded this info to another XDAmember that had exact same issue and they give him replacement phone at 1st but issue continued to occur--i told him about my story after he posted his problem, he contacted them this weekend and confirmed with me today that a new battery was on the way..see my public IM's for info). Anyway,when i was dealing with the battery issue they said they would definately NOT be able to fix under warranty bc the phone is rooted and unlocked. I can attest to the few people on here that said theyve been successful in such cases,but either way,IVE ALREADY STATED that i tried the DESIRE R2 camera kernal to see if that helps,so im not going to be dishonest and tell them i havent tried anything other than custom roms. Again..positive suggestions or similar experiences with warranty info would be appreciated....trollers looking for a funny post or to degrade people can eat one!
joshlusignan said:
I think it will help if you go through Google Cust service first...they will end up redirecting you to HTC repair. Provide all truthful information on your issue, proving that you have done some legitimate trouble shooting and they will realize that it is a hardware issue, not the ROM flashing or bootloader unlocking that caused the problem. Someone else on the xda forums had a rooted phone with bluetooth problem and was able to send to HTC for repair for free...with a 4 day turnaround!
Good luck!
Click to expand...
Click to collapse
Thanks JOSH, ill look into it tommorrow--as i stated tho--i feel im being dishonest for trying the DESIRE R2 cam and saying that they should cover it---uninformed people will assume THAT couldve caused it,even though i used phone afterwards for a few days w no side effects
Hey Milton, like others have mentioned in here might want to try flash back to stock and seeing if the problem persists. If it does then your looking at a hardware problem and you should contact HTC/google for repair.
Yea...i was thinking that from get go--(hardware prob). Im on cheesy STOCK ROM right now and have been for cpl hrs...but its obvious its gotta be hardware...NOW comes the crappy part of trying to explain it to HTC when attempting to get an RMA!--Yee Haa!
MOD PLEASE CLOSE OR DELETE---THANKS!
Milton, among the items on the very small list of things folks around here want in return for helping you is that you lay off the caps. Doesn't highlight anything that you'd want to highlight.
Doug
Okay,,,this is weird!!..My TORCH hadnt been working at all either, the whole time ive had the camera problem. Now ,the torch will work for ONE TURN ON, then if i launch CAMERA, the cam still doesnt work. i have to HOME and HOME only to get back to home screen..BACK ARROW does nothing except vibrate,indicating touch response. If i then re-launch TORCH, it doesnt work....!??SOMETHING is ODD--and im split whether its hardware- or some sorta SYSTEM file that stays stuck even after all STOCK FLASHES and everything!--again,reminder..the LED TORCH hadnt worked up until this point--unit has NEVER been dropped,slid out of pocket from 1foot high onto superthick carpet,so i doubt its a loose internal cable...Hmmm...
milton007 said:
Okay,,,this is weird!!..My TORCH hadnt been working at all either, the whole time ive had the camera problem. Now ,the torch will work for ONE TURN ON, then if i launch CAMERA, the cam still doesnt work. i have to HOME and HOME only to get back to home screen..BACK ARROW does nothing except vibrate,indicating touch response. If i then re-launch TORCH, it doesnt work....!??SOMETHING is ODD--and im split whether its hardware- or some sorta SYSTEM file that stays stuck even after all STOCK FLASHES and everything!--again,reminder..the LED TORCH hadnt worked up until this point--unit has NEVER been dropped,slid out of pocket from 1foot high onto superthick carpet,so i doubt its a loose internal cable...Hmmm...
Click to expand...
Click to collapse
That seriously hurts my eyes to look at. Try using proper punctuation and grammar. It's very simple and still gets your point across.
As for your phone. Call Google which will probably have you call HTC. People have gotten their rooted devices fixed for free if it's a genuine hardware problem and nothing caused from the rooting process.
milton007 said:
Okay,,,this is weird!!..My TORCH hadnt been working at all either, the whole time ive had the camera problem. Now ,the torch will work for ONE TURN ON, then if i launch CAMERA, the cam still doesnt work. i have to HOME and HOME only to get back to home screen..BACK ARROW does nothing except vibrate,indicating touch response. If i then re-launch TORCH, it doesnt work....!??SOMETHING is ODD--and im split whether its hardware- or some sorta SYSTEM file that stays stuck even after all STOCK FLASHES and everything!--again,reminder..the LED TORCH hadnt worked up until this point--unit has NEVER been dropped,slid out of pocket from 1foot high onto superthick carpet,so i doubt its a loose internal cable...Hmmm...
Click to expand...
Click to collapse
You should send it to HTC for repair. Charging fee or not, but thats the only option to you right now because its a hardware failure.
mikroN1 said:
That seriously hurts my eyes to look at. Try using proper punctuation and grammar. It's very simple and still gets your point across.
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Click to collapse
I was thinking the exact same thing, don't know where he must have learned how to type. Then you criticize people from Philly, or whatever its called somewhere, for not knowing how to read. I would say mirror that advice and learn how to type.. type properly.
Torch will work until camera app is used then it wont work again until i reboot. After reboot, torch will work ONLY on regular/lower setting. MAX brightness will not work. Toggle back to LOW setting and torch will work again. Im going to try what DOUG suggested bc that is the only thing i havent tried yet...but the way torch and camera are acting up and requiring reboots keeps me willing to try software tricks first...WHAT ties the TORCH's HI setting to the camera app adn yet keeps the LOW setting seperate!??..ill try the TORCH dev real quick for some insight on how the two work hand in hand.Thanks for anyone using their time to help instead of criticize. Sorry for mocking ones ability to read but i was quite [email protected] time bc i lost a major function on my phone.My apologies to all
Seriously Milton? More?
milton007 said:
Please DONT lend assistance to someone like this. IF they cant bither to read THE MOST SIMPLEST instructions, they should NOT be attempting this in the first place...thats just sheer ignorance...
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The attitude, hostility and the caps are not welcome here.
Along with the others I have no sympathy for you. Learn proper grammar and get a better attitude.
Troll much? Go tell your mother happy mothers day if you have that much time to pull up old posts from people asking questions in a 'kernal forum' about basics. Basics that anyone should know, if not they stand a much better chance on damging their phone. It wasnt being ignorant. Since you know everything there is to know about everyones posts, tell me where the topic dealing with my specific camera issue has been previously posted and ill be glad to read and search thru that forum. I wasnt the one asking questions about something mentioned in the OP (uh oh i used caps--oh geesh-someones gonna be saaad now!)and numerous pages before. Im sorry i dont spend all my life on forums to know that only words approved for caps are indeed CAPITALIZED. Petty little boy-and by the way, i was trying to stress your good advice by typing your name in caps so people would credit you with the help-Sorry to have taken your precious time sir. Good day.
Hello XDA Community!
I made a post about this issue before, but have more details so hopefully someone can help me figure out this issue.
My phone even when unplugged from my PC continuously says USB Connected/ USB Debugging in the notification menu.
Also, when I try and reboot the phone, instead of booting even to the Vibrant logo screen, the loading circle continuously blinks on and off, without actually booting.
As I type this, I am not holding down the power button, and the loading circle is blinking on and off by itself....
I used to be able to turn the phone on into recovery mode in the past, but now when I try to reboot into recovery I get a big yellow picture that says "Downloading"
The only way the phone will turn on is if it is plugged in.
I am fairly certain that this reboot issue and the USB issue are correlated in some way.
Did anyone else have this issue with their phones? And if so, how did you solve it?
Another thing I have just discovered...
When the phone is on and idle, the USB Connection notification will constantly blink on and off, which is why I think the phone would do the same when trying to power on!
Is this a hardware issue or a software issue?
I have not flashed anything in a very long time before this issue started happening so I believe a restore is unnecessary .
Someone please help me! This is very annoying, not only do I have NO notification bar because of the constant USB Connection notification turning on and off, I cannot turn on my phone at all unless it is plugged in!
ACK!
Take it back
I carry the insurance, so personally if this was happening to me I would not even mess with it. It sounds like you have a genuine problem with the phone and it needs to be replaced.
If it is possible to do try a nandroid backup of your phone to make getting back to where you are on your new device easier. Then take your phone back to stock with the recovery image here -->
http://forum.xda-developers.com/showthread.php?t=734475 (Thank you justanothercrowd)
One you have a stock device see if you are still having the issue. If you are take it back as defective. Even if you don't have the insurance, that sounds like a factory defect and should be covered by the factory warranty. The insurance just makes the process easier and makes sure they just give you a swap out at the store rather than having to wait for repairs. It also covers things the warranty does not, such as screen breakage - which is the specific reason I carry the insurance.
Ah crap wish I had insurance.... Do I have to do that whole odin procedure or is there a one click un root procedure as well?
Sent from my SGH-T959 using XDA App
Nevermind i just read through that link you posted. So when i go to a t mobile store do i have to unroot or can i just hide my root applications until i get a new phone?
Sent from my SGH-T959 using XDA App
I actually have not had reason to go back to stock, or even use odin yet at this point. My only roms were .zip files that I flashed via clockwork recovery.
I would say that your best best it to just follow the instructions on justanothercrowd's thread very carefully and deliberately. You are already having issues with reboots and your USB port, so this is not the time to deviate into experiments.
So to cut you off and just answer you next three questions:
Q) Can I just . . .
A) No! Just follow the directions exactly.
Q) But can I . . .
A) No! Just follow the directions exactly.
Q) Do I have to . . .
A) Hey look, Just follow the damn directions exactly!
Sorry, I can't help much beyond that. You chose to modify your phone and risk that you would not have issues, just like the rest of us here. In your case you did have issues. Now you have to get it back to stock so they don't have any reason to claim you caused this or that your warranty is void. I hope all goes well and it works out for you. Let as know and keep us posted. Good luck.
Lo N Slo said:
Nevermind i just read through that link you posted. So when i go to a t mobile store do i have to unroot or can i just hide my root applications until i get a new phone?
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
We must have been typing at the same time LOL.
There is a thread on unrooting, and basically it is just deleting a few things. After doing this you should not have any non-stock applications on the phone and there would be no reason to think it was rooted unless they went digging on the file system. Personally, I would delete those telltale files just in case, it looks a little suspicious to bring in a phone that looks like it has not been used since you bought it, but they have no proof you did anything and you can claim that you first did a factory reset to see if it would fix the problem.
Just want to keep this thread going, as I am having the exact same issue as the OP as of today. It happened out of the blue, and I haven't flashed anything new to my phone since JI6 was released, other than that, it's just a stock, rooted phone.
Hoping someone has an idea, but I will likely get it replaced under warranty, since the GPS has never worked either.
damnit damnit damnit I really wish I had warranty.
Random question about clockword mod recoveries.
If I were to do a backup right now, and save that file to my computer, could I restore that file later on a different phone after I root my replacement?
I don't have that many mods flashed, and I know all of the apps can be synced, but still it would be sooo convenient .
I believe that is how it works, so yes. It should be no different then when you clone a hard drive to put the image on multiple computers for easy distribution.
It is (just like the cloning metaphor) hardware specific. Just like I could not purchase a upgrade computer and expect a cloned image to work, don't expect to create a Vibrant backup and restore it on a Captivate.
That said, you should be able to restore your backup to new (identical) hardware.
By the way, what is the warranty on these? I thought it was a year for defects. I didn't think the Vibrant had been around long enough yet for anyone to be off warranty.
it should be a year, but there was also the option for a purchased warranty. I did not purchase a warranty, so I should be good on just my manufacturer's defect warranty
Being discussed here:
http://forum.xda-developers.com/showthread.php?t=817643
well Yeah.. so i bought this stick just now on ebay thinking it should be good enought to give away for streaming some live tv and so on, but
this had obviously the WIFI problem and there i was..
Not beeing able to use WIFI i started to search for different roms and after a couple days constantly searching HOW TO- and downloading different ROMS and watching youtube on how to flash i set up to the task once again..
Beeing able to flash both Nvidia tablets, Samsung Telephones, and Xiaomi i felt confident that i would be able to fix this..
But no, i had a couple different roms that started up With start screen but then that was it, nothing more i couldnt get past start boot logo on either of the 3 roms i thought was correct so i startd to search for same chip roms as this has the 3229 rockchip and the AS something number wifichip..
But then after flashing With a unknown rom it wouldnt start up again or even get recogniced by the computer usb again..
I tried the reset button, i tried shortcutting pin 6-7 and most likely all other as well but no Luck..
There is a blue light but its only halfway as Bright as when the stick was ON and working.
So its like its stuck in some low Power recovery or i dont know..
At least it lights up when i plug it in.
this is the stick With the red "plastic antenna"
Its not an antenne after all by lokking at it but maybe it serves some purpose of making People think its an antenna..
Any suggestions will be apreciated as now i consider it as Waste and after just spending 35 USD on it i would like it to at least get it back so i can sideload some games on it and give it away rather than putting it in the trashcan..
I attach link to the crap i bought so you get the idea of what it is and to also avoid..
Thank you all for all help!!
http://www.ebay.com/itm/252678580408
veralynn said:
well Yeah.. so i bought this stick just now on ebay thinking it should be good enought to give away for streaming some live tv and so on, but
this had obviously the WIFI problem and there i was..
Not beeing able to use WIFI i started to search for different roms and after a couple days constantly searching HOW TO- and downloading different ROMS and watching youtube on how to flash i set up to the task once again..
Beeing able to flash both Nvidia tablets, Samsung Telephones, and Xiaomi i felt confident that i would be able to fix this..
But no, i had a couple different roms that started up With start screen but then that was it, nothing more i couldnt get past start boot logo on either of the 3 roms i thought was correct so i startd to search for same chip roms as this has the 3229 rockchip and the AS something number wifichip..
But then after flashing With a unknown rom it wouldnt start up again or even get recogniced by the computer usb again..
I tried the reset button, i tried shortcutting pin 6-7 and most likely all other as well but no Luck..
There is a blue light but its only halfway as Bright as when the stick was ON and working.
So its like its stuck in some low Power recovery or i dont know..
At least it lights up when i plug it in.
this is the stick With the red "plastic antenna"
Its not an antenne after all by lokking at it but maybe it serves some purpose of making People think its an antenna..
Any suggestions will be apreciated as now i consider it as Waste and after just spending 35 USD on it i would like it to at least get it back so i can sideload some games on it and give it away rather than putting it in the trashcan..
I attach link to the crap i bought so you get the idea of what it is and to also avoid..
Thank you all for all help!!
http://www.ebay.com/itm/252678580408
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Click to collapse
Hi.
I think I have the same device as you. And also I tried to flash another rom without success, so until I find a good rom, its just a small brick.
I also been in the same situation as you, but you have to short pins 7-8 to revive. Its the pins facing the middle of the device, and counting from the device edge/side.
Good luck. If you find a working rom for it, let me know
No, i have had no luck. Piece of **** device.
Got 80% refund from seller after a couple weeks of complaining.
Just throw it away and buy a ZAPPATI media player or a Nvidia shield if you dont use any 3D.
veralynn said:
No, i have had no luck. Piece of **** device.
Got 80% refund from seller after a couple weeks of complaining.
Just throw it away and buy a ZAPPATI media player or a Nvidia shield if you dont use any 3D.
Click to expand...
Click to collapse
Hi again.
If you ever revive your dongle, you can get a working rom from the following link:
http://freaktab.com/forum/tv-player-support/rockchip-based-tv-players/rk3229-devices/firmware-roms-tools-bg/623420-mk809iv-rk3229-bricked-how-to-unbrick?p=646882#post646882
It worked for me
Thanks. I will try. Any tips in how to revive it??
I also have an mk809iv. I couldn't get developer options to show after tapping build number but it said "no need you are already a developer" (I assume its preunlocked?) I got bored and decided to flash a rom. I have the rockchip factory tool and rockchip batch tool. I tried flashing an update and the problems began lol
OK..... The stick now doesn't have a blue led on AT All. Tried original mains power source different USB cables different ports on laptop etc.
When I connect it to the TV it doesn't show up on the hdmi. Have I really fried it properly ?
Is there a way to use command on pc or adb shell or something to unlock the bootloader. In batch tool I can see the device after shorting pin 6/7 method but when I load firmware and start to flash then it comes up with failed at boot every time and on different versions of the tool.
I rooted the device before with King root (not king o root) and flashed supersu via rom installer app. Assuming that developer options are open by default, the device should be rooted now...... Right? ?
Anyway is there a way to uninstall all the software and reinstall the manufacturers firmware via the pc ? I have included pics of the board, but when looking at other people's pics the have a lot more chips and nand chips etc mine has one chip on the back and on the other side what I presume to be a heat sync (look like a bit of a tin can
Lol)
I have been on many forums for about 48hrs straight now ? and still can't find answers *sigh*
Recap:- 1 is it fried
2 if not can I sort it via pc
3 HOW?! lol
One last thing, would it run on cyanogenmod 11 ? it's an android device running kit kat and my gingerbread S2 is now on cm11 or are the internal "gibbons" different ?
Many thanks to anyone who can lend me a hand ??
Hey!
While I was calibrating my fingerprint, phone suddenly turned off and went to recovery with screen off.
I managed to reflash stock rom through fastboot and it boots to system fine, but the screen stays off and the front camera keeps trying to open while playing the MIUI camera sound (sometimes, while booting, the camera does manage to open once, kinda like it's calibrating). Some playing around with ADB and it seems that the SIM isn't recognized either.. antenna maybe?
I opened the phone up and checked everything, there's no visible issues with the electronics, however it could just be the inside of a cable that died?
Does anyone know what this could be? I noticed the screen, fingerprint reader and antenna are all connected to the same removable PCB, but the camera isn't so that's odd.
Aren't we moving way too fast here? Like wtf is happening rn?
First: Explain in detail from the beginning please if you want help.
Second: Please state exactly what is your issue, and the ROM version of your device.
I don't think what you just did is the cause of whatever problem you're facing, do you mind telling me the source from which you got this phone? Otherwise you might want to send it to a service center.
XDHx86 said:
Aren't we moving way too fast here? Like wtf is happening rn?
First: Explain in detail from the beginning please if you want help.
Second: Please state exactly what is your issue, and the ROM version of your device.
I don't think what you just did is the cause of whatever problem you're facing, do you mind telling me the source from which you got this phone? Otherwise you might want to send it to a service center.
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Click to collapse
It's a bit of a long one, so I didn't want to bother too much with the details if anyone knew what those specific issues could be caused by, here goes though:
I am on a Mi 9T bought on Amazon Italy in July 2019. I cannot comfortably send it to a repair center due to every authorized shop around here is just a drop-off point for Xiaomi RMA. I talked to them and, due to (>6 months old) glass damage to the screen and back of the phone, they intended to charge me way more than I can afford, as "solving issues covered by the warranty would require us to replace the accidentally damaged components"
As for what happened:
I was running LOS 17.1 with no issues for a few months. I went to unlock the phone and I heard the reboot vibration, which sent me to recovery (softbricked) but with no screen signal. I assumed it was just a software problem, so I flashed MIUI 12 (global, V12.0.7.0.QFJMIXM) to see what would happen.
As it completed, the phone rebooted itself, the MIUI logo popped up and it went to system (seemingly) without any issues.
I went through the initial wizard and played around with it. everything seemed fine and I even made sure the screen did work in recovery and fastboot. Later, when I went to setup the fingerprint reader, the screen went blank for half a second when I first touched it, and then the same screen death -> reboot to recovery.
The phone was softbricked again, though, this time, reinstalling MIUI didn't yield the same success. Now:
MIUI boots "normally" again
The screen isn't working at all
The front camera opens, as if it's calibrating, when system boots up
The front camera randomly tries to open again every now and then, failing to do so as if the motor is stuck, while MIUI plays the camera closing sound.
Meddling through ADB, the antenna doesn't seem to be working, but I can't be 100% sure due to the methods used
The power and volume buttons, speakers, and the charging light all work.
I have opened the phone up myself, thoroughly checked every cable, connection and PCB, but there is no sign of damage. I put it back together and the same issue continued.
My best guess is that something inside the fingerprint reader went bad and shorted something else.
What that something else is, I couldn't find out. Given the antenna, screen and FOD are all connected to the same little PCB which then runs a couple cables to the motherboard, I am now in the process of finding a couple replacement cables to see if that fixes anything.
As I mentioned before, repair centers are not an option due to the lack of anyone who's willing to help me for less than a good chunk of the price of the phone.
Interesting. So basically what happened is due to the initial soft brick and accordingly you flashed a global MIUI 12 ROM, which in return brought you to the second soft brick which caused some issues within the hardware of the device.
Now you're stuck with a faulty screen, a faulty camera and a faulty antenna.
I don't have the skills to play around with the motherboard and the phone circuit. And I don't care which youtube tutorial you saw, you should have NEVER done that - Of course unless you're actually experienced in that manner, then I apologize for speaking with such prejudice -
I can't help you if you messed up your phone circuit since I have no knowledge about android hardware, however I can safely assume that what caused your issue isn't related to hardware.
I think the issue is caused by an incomplete flashing of a ROM (In this case MIUI 12 global) OR flashing a different variation from your device.
e.g. you flashed only the ROM, but didn't flash the other components of the ROM.
Needless to say, flashing a variation of the ROM that isn't meant for you device can be a disaster recipe.
I recommend flashing LOS again, since you can't go back on Xiaomi devices due to rollback protection.
XDHx86 said:
I don't have the skills to play around with the motherboard and the phone circuit. And I don't care which youtube tutorial you saw, you should have NEVER done that - Of course unless you're actually experienced in that manner, then I apologize for speaking with such prejudice -
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Click to collapse
I understand why you'd think that and have seen people do similar stupid things, however I didn't watch any youtube video and know what I'm doing quite well.
I made sure I flashed the correct rom through fastboot to restore everything to stock. I did try to reflash LOS and whatever else (though it's kind of a pain with adb shell), but it doesn't fix the problem, sadly.
That's why I'm betting on a HW issue.
The fingerprint reader and everything else worked flawlessly in LOS for months, but it made the screen go blank and bricked the device in both LOS and fully functional, stock MIUI.
Currently, I'm battling with this damn thing to get USB debugging working while booted to system, so I can do a few things like cast the screen to my PC and see what works from there.
I have access to fastboot and recovery, but everything I know (editing build.prop or patching the boot image) didn't work so far. Do you have any idea what I could do to get that done?
angometry said:
Currently, I'm battling with this damn thing to get USB debugging working while booted to system, so I can do a few things like cast the screen to my PC and see what works from there.
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If the touch screen is dead then you can use mouse and OTG cable.
If it is completely black then you can get usb c to HDMI cable (Also usb c hub might work, like this one). Or you can use playstore on pc to download and install apps like (Screen stream over HTTP) on your device, just make sure your device is connected to the internet and you're signed in on your phone as well, you might have to type in the screen password if you have one.
angometry said:
I have access to fastboot and recovery, but everything I know (editing build.prop or patching the boot image) didn't work so far. Do you have any idea what I could do to get that done?
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I don't know why bother with build.prop unless you have the wrong fingerprint prop. Then you can get the correct one from your device's stock ROM, though I think this is irrelevant to your issue.
All I can think of is:
Wiping dalvik cache, though you might have already done that.
Trying other custom ROMs from here.
You may try to get your device rollback index and installing a MIUI ROM that has index higher than it, and see if that works.
That is as far as I can help, unfortunately.
I have zero knowledge when it comes to hardware, so I can only help with software issues. If none of my solutions worked then sorry for wasting your time :/
XDHx86 said:
If it is completely black then you can get usb c to HDMI cable (Also usb c hub might work, like this one).
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Wait, does it actually just automatically use it as a 2nd screen if I connect it via HDMI?
XDHx86 said:
I don't know why bother with build.prop unless you have the wrong fingerprint prop. Then you can get the correct one from your device's stock ROM, though I think this is irrelevant to your issue.
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Sorry, I didn't explain myself, I'm looking for a way to enable USB Debugging without a screen. Thinking that using adb in twrp is the best way, but I can't manage to do it. Do you have any ideas?
If I can get it on, I can then use things like scrcpy to get screen signal through USB.
Main problem with everything else is that the screen is 100% dead. Even with usb otg I don't know how I could possibly get through the setup wizard haha
angometry said:
Wait, does it actually just automatically use it as a 2nd screen if I connect it via HDMI?
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I haven't tried it myself, however it should detect it as a second monitor. Give it a try the cable isn't costly at all anyway.
angometry said:
I'm looking for a way to enable USB Debugging without a screen. Thinking that using adb in twrp is the best way, but I can't manage to do it. Do you have any ideas?
Click to expand...
Click to collapse
TWRP has debugging mode on by default, however that strictly applies to recovery and fastboot modes only as debugging mode is pretty powerful and can cause security issues. So you better forget about it.
I saw one of my friends who owns an authorized service center use some cable connections to get the screen to display on another touch screen. If you have the capabilities and resources I recommed trying it, though don't mess too much with the motherboard.
Just a question though, can you confirm if the touch is working? If not then there's a chance - Although slight - that this is just a UI problem (Which is pretty common in MIUI ROMs for some reason). In that case deleting dalvik cache or completely reflashing the ROM might solve the issue.
I may not do much help but certainly someone there can help so it's better if you include "usb debugging" in the title and/or the tags. Like changing the title to "Enabling usb debugging without screen" or "Screen is dead, need help to flash ROM"
Using proper title and proper tags can get the right person to help.