Develop Bugs

Bricked, need help.

Phone won't boot into anything. When trying to boot into download mode windows does make noise but that's it. Tried a jig but still nothing. Suggestions?

any possibility the battery is dead? other then that not sure *bump* to the top maybe someone else has a better idea

blkbltwrestler said:
any possibility the battery is dead? other then that not sure *bump* to the top maybe someone else has a better idea
Click to expand...
Click to collapse
Try a battery? How would we know if it was dead?
Sent from my SGH-T989 using xda premium

if it was just a bad battery the phone would power on when plugged into an outlet

Tried a good battery from another phone, forgot to mention thst
Sent from my SGH-T989 using XDA App

what did you do before it died custom rom? flash a new recovery?

You sure its bricked fully? Cuz i had a brick a few weeks ago flashing something and testing it. My phone would not do anything with any of the button combos, no dl mode no recovery and when i plugged it into computer via usb i didnt get any sound or nothing. Thats a brick! Do u get any sound when connecting to comp? Idk if u cant figure it out call jtag but not sure if the debrick our device yet that will take around ten days u can google them i think its mobile tech. And what they do is take the board out of the phone sodder some wires on to it then run there software to debrick it then put phone back together. Now an easier option is ro just tell tmobile your phone died on charger and wont turn on tell them it was hot. They will never know especiallt if the phone wont turn on they will overnite one and it should only be 5bucks for a warranty exchange thats all it cost for me since our phones do have a warranty for year that is your best option u will get it the next day and it will be a refurb but mine is beautiful and looks brand new and the scree has like no lines actually nice. Now if u lost it or have damage that what insurance is for. That if u got it but like i said do the warranty exchange

yep that phone thejron is talking about, it became silent after trying to install a zip via rom manager. immediately after running the manager, reboot phone now, it flashed a small white light in the middle of the screen like a old tube tv turning off and that was it. no button light up. no dl mode no recovery. we tried everything. when hooked up to a pc via usb, the pc makes a usb connected sound but doesn't recognize anything or show up anywhere. if i hold the power button down, the pc actually makes the usb disconnected sound and does the usb connected sound when released. makes no sense really.

i have had something like this happen before...even though obviously from screen phone is not on , have you tryed opening odin the plugging phone up to see if odin recognizes? also since when in dl mode you first have to hit vol up to get there, you should try doing that too
just because phone is black and non responsive does not mean that it will not work.

odin doesnt recognize it at all. and when the jig was hoked up to it on and identical phone, it immediately went to dl mode. on this phone, we got nothing. jig in or out, volume up or down. nothing

theoldbaboon said:
yep that phone thejron is talking about, it became silent after trying to install a zip via rom manager. immediately after running the manager, reboot phone now, it flashed a small white light in the middle of the screen like a old tube tv turning off and that was it. no button light up. no dl mode no recovery. we tried everything. when hooked up to a pc via usb, the pc makes a usb connected sound but doesn't recognize anything or show up anywhere. if i hold the power button down, the pc actually makes the usb disconnected sound and does the usb connected sound when released. makes no sense really.
Click to expand...
Click to collapse
Can you tell us what zip you flashed?
Sent from my SGH-T989 using XDA App

[Q] Help!! a100 Blackscreen

i have a a100 with the latest flexreaper rom installed and im stuck with a pretty serious issue:
a couple of days ago the tab was acting real slow and sluggish and getting bad battery life didnt think nothing of it so i just rebooted a couple times and left it alone . all was good untill the battery hit 10% and i plugged it up using the factory ac adapter. the next day (maybe 6-7 hours later) i went to turn it on and nothing no vibrate no screen flash nothing; other than the power button turning blue as i pressed it and it would stay on for a couple hours but still no other response from the tablet.
im at my wits end on what could be wrong and now i got my wife with her foot on my neck till i get it fixed. can anyone help me?
ive tried to do a hard reset with the reset button tried to boot into recovery /bootloader no dice
(also my home button flashed a couple time i pressed the power button) dont know if its relevant but wanna get as much info out as possible

wondering if anyone can help me...

frenize said:
wondering if anyone can help me...
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Click to collapse
It may take awhile for someone to see this and form something to try, random bricking for no reason is rare, its almost always some error by the user. However have you attempted adb connection to it? Leave it powered off, connect to the PC you used to unlock the boot loader then power on. Does the PC make the USB connect sound? Does the Acer vibrate? Did the home key blink again?
It really sounds like your boot partition is wrecked which wouldn't normally happen outside of flashing. If boot loader is trash then it won't know what to do and just sit there. No recovery or anything else.
Tapatalked from my Galaxy S II.

pio_masaki said:
It may take awhile for someone to see this and form something to try, random bricking for no reason is rare, its almost always some error by the user. However have you attempted adb connection to it? Leave it powered off, connect to the PC you used to unlock the boot loader then power on. Does the PC make the USB connect sound? Does the Acer vibrate? Did the home key blink again?
It really sounds like your boot partition is wrecked which wouldn't normally happen outside of flashing. If boot loader is trash then it won't know what to do and just sit there. No recovery or anything else.
Tapatalked from my Galaxy S II.
Click to expand...
Click to collapse
it made something like the connect sound but instead of the regular duh doom sound it did a dadadoom (kinda hard to describe the sound) but it was faster than ive ever heard the connect sound before which is weird. the tab didnt vibrate and it seems the home button blinks when the tab is dead and needs recharged

frenize said:
it made something like the connect sound but instead of the regular duh doom sound it did a dadadoom (kinda hard to describe the sound) but it was faster than ive ever heard the connect sound before which is weird. the tab didnt vibrate and it seems the home button blinks when the tab is dead and needs recharged
Click to expand...
Click to collapse
Yeah I know that sound it means USB connected but error for some reason. Its been shown if this thing dies all the way down it wont read the battery correctly and probably needs to be sent in. Before that I personally would unplug it open it up and remove the battery for awhile, maybe an hour then put it back and plug it in. But thats me, not the advice I'm giving. If you have warantee on it use that.
The batteries on a lot of devices and laptops etc have something of a fail safe, if the voltage drops below a certain point it trips to prevent cell damage, however it renders the battery useless.
I haven't searched out much past that if a reset is possible by us, but it seems the pack is trash after or needs sent in.
Since this is a sealed unit you void warranty opening it (well unlocking the boot loader did too) so you can't send it in for repairs without paying for it.
I hope someone can jump in and help figure this out, and prove me wrong.
Tapatalked from my Galaxy S II.

Weird, This exact same thing happened to me. Used it in the morning and now after work it won't turn on. I had already tried disconnecting the battery, but hadn't thought to leave it disconnected for an hour. My tablet has been running the leaked ICS since it came out and The last factory reset it had was about a month ago. It was working fine up until this. The power button seems to be responding correctly, the issue is that after the LEDs light up, there is no vibration or display. I hope someone can help us with this issue.
EDIT:
It won't connect in ADB mode. It will only appear on my computer as an APX device and since there is no vibration I am unable to boot into fastboot. Any help or suggestions? All the threads I have found have involved booting into fastboot.

i am also having this problem. i set ti backup last night to save to box i turned it on this morning it.worked set it on the charger came back to a frozen screen. I turned it off now just a black screen it turns on or the home button dose but nothing comes up on the screen

same thing here.
max69power said:
i am also having this problem. i set ti backup last night to save to box i turned it on this morning it.worked set it on the charger came back to a frozen screen. I turned it off now just a black screen it turns on or the home button dose but nothing comes up on the screen
Click to expand...
Click to collapse
I have been using ICS the leaked one, and last night I was goint to check my email and it did not turn on, I though the battery died. I plugged to the charger and this morning I tried to turning it on but it failed. I did the reset pin but nothing. I connected to the computer and it was recognized as a APX device and installed a driver ACER Picasso USB recover but i cant access anything. I am a nob. Thanks

A100 blackscreen
i am also having this problem. last night. just a black screen it turns on or the home button dose but nothing comes up on the screen. :crying: Help!!!!!!

Has anyone tried holding the power button for a while? Laptops do this too, if someone felt ventures, try taking the battery out and hold the power button. No promises, might work.
sent from my ICONia

same here
Having the exactly same issue, here...
I also tried to hit the hardware reset button and it does not help.

If the screen is blank while powered on its in failsafe mode, in other words is bricked, has to go to Acer.
Tapatalked from my Galaxy S II.

This just happened to me a few weeks ago as well. If you are still under warranty send it in to Acer, thats what I did. I just got an email saying they had fixed it and were sending it back for free!!
At the time I was on the 9/02 JB build. I wonder if this issue is caused by faulty hardware or if it is an issue that was made by rooting and unlocking it? I don't know enough about this stuff to answer that though, but it does make me think whether I should root/unlock it when I get it back or leave it stock.
Also thanks Pio_masaki for helping me a few weeks back wasn't sure if I was even going to send it in until you said they most likely won't be able to tell.

I highly doubt they even CARE when sending these in. They will void for physical damage most likely.

tshm55 said:
Having the exactly same issue, here...
I also tried to hit the hardware reset button and it does not help.
Click to expand...
Click to collapse
Ohmygod,
Same here, but it's 3 years ago. Sorry for digging the topic. Still no hope? I still keep the tablet and have just buy another refurbished mainboard to replace but still no vibrate and blacksreen still there.

Repair bricked phone

Hi everybody!
I have an almost 2 years old DHD which I think is completely bricked. It was working for approximately one years perfectly and then suddenly it stopped working. Whenever I tried to turn it on, it only vibrated once and did nothing more. Sometimes it turned on and these working periods were enough to restore to stock condition (It was rooted and had Eng S-OFF before.). I had brought it to service and they said they was not going to repair it as the device got water damaged. I'm pretty sure it was not! After a few weeks, it started working again. I was using it for 3 months then it bricked again and it's the situation today as well.
Previous week I looked into the development thread and saw all of these new amazing roms. So I took my DHD to see if it's working or not. The situation is the same. Everytime I power it on, the phone only vibrates once and nothing happens. I'm not able to get into hboot mode. At some very rare occassions the phone turns on and works flawlessly till reboot. When I connect it with USB, the computer doesn't recognize it. Battery is charged, I even tried another battery.
Does anybody know what happens with the phone? I'm open to any possible solutions to try. Please don't suggest to bring it to service or repair it, because I have another phone, just want to try to recover it and ask your ideas about the problem.
Thanks in advance!
Greetings,
Adam

So you say you cant enter in fastboot or recovery?

Since it's intermittent, my guess is it is a hardware problem. Some kind of bad contact/loose connection. Make sure everything looks good on your battery door and the battery contacts inside the phone.

paescheh said:
So you say you cant enter in fastboot or recovery?
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Click to collapse
I cannot enter into hboot mode. Didn't try recovery, but assume it's the same.
waterbox said:
Since it's intermittent, my guess is it is a hardware problem. Some kind of bad contact/loose connection. Make sure everything looks good on your battery door and the battery contacts inside the phone.
Click to expand...
Click to collapse
I also think it's a hardware problem. Will take a more careful look at the battery.
Sent from my CM10-powered GT-I9103

need help
im having trouble finding post option on page.i recently rooted my phone.all was well until i used font app sms pro and emoji plug in.i also forgot o disable auo update.worked for 10 minutes then apps wouldnt load.whil attempting to uninstall via recovery...since no other options worked...i wiped my system....now recovery says E:no os...please help...im using vm htc 1 v cdma...

goofed again said:
im having trouble finding post option on page.i recently rooted my phone.all was well until i used font app sms pro and emoji plug in.i also forgot o disable auo update.worked for 10 minutes then apps wouldnt load.whil attempting to uninstall via recovery...since no other options worked...i wiped my system....now recovery says E:no os...please help...im using vm htc 1 v cdma...
Click to expand...
Click to collapse
Wrong sub forum buddy, post in the One V Forum.

Its possible that there isn't "water damage", but there could be moisture getting into the phone causing it to act erratic. To cancel out that possibility, submerge it in a closed container full of rice for a few days
Sent from a satellite

Bricked Ion - any gurus able to help?

So, been rooting, fiddling, installing ROMs, etc for a couple years. By no means am I an expert, I can just do research and read. I've had bootloops, and crashes, and all the same issues everyone else on this forum has had over the course of learning this stuff. So, when my phone wouldn't boot up even into recovery, I didn't sweat it at first. But, well, I've tried everything and nothing works. I can't boot, I can't charge it. Nothing works.
So, here's the breakdown.
Lt28i
Was running stock
Phone was rooted
CWM recovery
Bootloader is unlockable via regular means.
Hated it since a recent update. Phone was slow and i wanted JB. So i started the process.
I installed a new kernel, was in the process of installing a new ROM, but the instructions said to delete /system. I did.
From that point on, phone would not boot. Would not charge and would not get into recovery.
I can't connect via adb/fastboot.
It's a brick sitting on my desk. I've since gotten an HTC one, which IS AWESOME guys, but I hate having a perfectly fine piece of hardware just sitting on my desk collecting dust, (not to mention hate admitting defeat) so I'd like to get it working and either give it to a friend or sell it. Can anyone help.
Symptoms. As soon as i plug it in, the red light goes on. After about 15 minutes, the sony logo comes on with the red light off for just under 10 mins or so, then black screen and red light on. So, it's in a kernel boot-loop of sorts, but never gets past it and therefore doesn't charge. I've left it unattanded for over a week to drain the battery, hoping it'll reset, but no change. Immediately the red light goes on when plugged in. No way to boot into recovery. No way to connect to fastboot.
Any ideas?
Have tried the following:
http://forum.xda-developers.com/showthread.php?t=1849170
and a bunch of others. None has worked.

So your bootloader is locked?
You can't flash any custom kernel on locked bl.
First, connect your phone to a wall charger for whole night.
Then use Update Service or PCC to repair it.
Remember: do not connect your phone to PC until it ask you to do so.
Press vol down when connecting to PC.

cities516 said:
So your bootloader is locked?
You can't flash any custom kernel on locked bl.
First, connect your phone to a wall charger for whole night.
Then use Update Service or PCC to repair it.
Remember: do not connect your phone to PC until it ask you to do so.
Press vol down when connecting to PC.
Click to expand...
Click to collapse
sorry, my mistake. The plan was to flash a kernel, but i never got around to it. I had looked into unlocking the bootloader, but wanted to see if I could get any good JB roms first. Sorry about that false info.
I have both let the phone die completely, or so I think, unless it keeps its charge for over a week and charged it for about 40 hours. Like I said, it does the bootloader boot loop which seems to keep it from charging. I never get to the screen where it shows the charging icon, so I can't tell, but I've definitely left it on a charger (not PC) for at least a day and a half. No go.No amount of pressing vol down works.

Does flashtool work on bricked phones?

lewis021 said:
Does flashtool work on bricked phones?
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Click to collapse
Yes, Unless your device is hard bricked meaning it wont show any led or wont do anything basically

AndroidHoneyComb said:
Yes, Unless your device is hard bricked meaning it wont show any led or wont do anything basically
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Click to collapse
Well, that's why I'm hopeful, cause the led does light up immediately on plugin. And the Sony logo screen shows up for a few minutes, then disappears. I have tried flashtool, but it won't connect. No go.

vijn said:
Well, that's why I'm hopeful, cause the led does light up immediately on plugin. And the Sony logo screen shows up for a few minutes, then disappears. I have tried flashtool, but it won't connect. No go.
Click to expand...
Click to collapse
Your either using flash tool wrong (Hold the down button while plugging in the usb to go in flashmode and then flash the ftf quick before flashmode restarts of being idle) The Sony logo is still there so there should be no reason to send it in until all possible repair techniques have been used

AndroidHoneyComb said:
Your either using flash tool wrong (Hold the down button while plugging in the usb to go in flashmode and then flash the ftf quick before flashmode restarts of being idle) The Sony logo is still there so there should be no reason to send it in until all possible repair techniques have been used
Click to expand...
Click to collapse
Well, I've used flashtool a whole bunch of times. Sure from time to time there's an issue with it, but I've tried different versions and none has been successful. And I'm very familiar with the "getting into flashmode" process. And yes, I would agree with you that if the sony logo shows up, then there's gotta be a way, but I'm telling you, it's just not happening. I've tried 100 times.

vijn said:
Well, I've used flashtool a whole bunch of times. Sure from time to time there's an issue with it, but I've tried different versions and none has been successful. And I'm very familiar with the "getting into flashmode" process. And yes, I would agree with you that if the sony logo shows up, then there's gotta be a way, but I'm telling you, it's just not happening. I've tried 100 times.
Click to expand...
Click to collapse
Does Flashtool show anything after you connect your phone to PC with flashmode?
"Drivers have to be installed" or somethimg?

vijn said:
Well, I've used flashtool a whole bunch of times. Sure from time to time there's an issue with it, but I've tried different versions and none has been successful. And I'm very familiar with the "getting into flashmode" process. And yes, I would agree with you that if the sony logo shows up, then there's gotta be a way, but I'm telling you, it's just not happening. I've tried 100 times.
Click to expand...
Click to collapse
If you can see the Sony Logo then it has to work, Hold the down key, while plugging it in and it will show a green led... I had the same problem as you (cause I do things that sony may not like, on my phone)
1. Make sure you have the correct drivers installed.
2. Turn your phone off and unplug USB cord.
3. Hold the VOLUME DOWN button while inserting the USB cord.
4. You should see your small notification light in the top right of the phone turn green.

AndroidHoneyComb said:
If you can see the Sony Logo then it has to work, Hold the down key, while plugging it in and it will show a green led... I had the same problem as you (cause I do things that sony may not like, on my phone)
1. Make sure you have the correct drivers installed.
2. Turn your phone off and unplug USB cord.
3. Hold the VOLUME DOWN button while inserting the USB cord.
4. You should see your small notification light in the top right of the phone turn green.
Click to expand...
Click to collapse
Ya, first of all. I can neither turn the phone on or off. I have no control of it. It "turns on" when it wants and off when it wants. But when i say turns on, it only turn onto the sony logo screen after about 20 mins of being plugged in, when I guess the charge is just enough to allow it to start the boot process. Then the sony logo screen turns on, until that tiny charge dies and the phone turns off and the red LED comes on. Process repeats over and over again. I even put a rubber band on the phone to keep the volume down button pressed so that when the charge does reach the right level for the boot process that the vol down button will trigger recovery, but no deal. If this is the only way to get this thing working, is what you've recommended above, then phone is completely bricked, cause the phone has been like this for 2 weeks and nothing has worked. I know i have the drivers, cause up until this issue, flashtool worked fine. But the PC doesn't even recognize that there's a device plugged in at all now, cause the phone never boots. So, it's like plugging in a usb HDD that is off. I didn't really expect anyone to have a solution, cause i've done extensive research and tried almost everything I've read that seemed relevant, but I still had hope. I suspect the only way to fix it is to open it and connect directly to the mobo in some other way, but i don't have the tools or resources for that. Not even sure I can send it in to be repaired cause it's rooted. Unless someone has a eureka solution, my only option is to send it in to a 3rd party repair guy. Any other thoughts?

The most important thing is: what have you done to your phone before?
Flash something or edit something?
To turn off your phone, long press power + vol up until 3 vibrations.
Then connect your phone to a wallcharger for whole night.
(Do not use PC cable... It won't charge much...)
Then flash stock ftf via Flashtool.
Sent from my LT26i using xda app-developers app

Just read my first 2 posts in the recovery thread sticky'd in the general section.
Then reinstall ALL drivers available in flashtool.
Then use the rubber band trick from my thread. Make sure that the rubber band pushes the button in.
Sit back and wait ,believe me this is the hardest step.
From my Xperia LT28at ION

ToledoJab said:
Then use the rubber band trick from my thread. Make sure that the rubber band pushes the button in.
Sit back and wait ,believe me this is the hardest step.
Click to expand...
Click to collapse
I laughed at the method simplicity, and got amazed on how effective is it.

So when you connect the phone to your PC while holding the volume down key...no green light, and its not recognized by your PC at all, right? Assuming you're using windows; does windows try to install any drivers or anything? Are you prompted in any way that a device has been connected?
and did you try the above mentioned? Hold UP and power button for like 10 seconds...you'll feel it vibrate once...then a few seconds later it should vibrate 3 times...I bricked my phone to some degree Sunday...only I had no response whatsoever...no led while charging, or otherwise...and literally no response from anything...until i tried that vibrate 3 times thing...and it booted right up after...

NO GO!
Well, I've tried it all. @ToledoJab I've read and reread that original post a bunch of times. followed all instructions, in fact, I had read that post many times before even posting in this forum with no luck, but I thought I'd be patient and try again, Used the rubber band technique. Nothing. Seems, when the rubber band is used, the phone doesn't even start the boot process, meaning never shows the sony logo screen.
@jtr what no one seems to understand is, there is absolutely no response to using the power button to turn this on or off. No vibrate, nothing. There are only 2 states. 1. When plugged into wall or PC, LED is red and after 20 mins Sony logo shows up if the vol down button isn't pressed. 2. When not plugged in no led.
Flashtool has been open for 2 days, phone has been plugged in, with rubber band. Drivers installed. Phone is never recognized because it never turns on. it's in perpetual red light on mode.
I don't know guys. I'd say this is an official brick. Not sure there's any way to fix this without opening it up. Still open to any ideas, but please read what I've posted because all the recommendations so far have been things I've already said I've tried, and numerous times. I can't imagine there's anything else to try, but thought I'd update you guys nonetheless.

cool, i understand.
If the volume down key is preventing it from going into that boot loop, though...it seems to be responding to physical input to some degree...
Have you tried any of this without a sim card? I know that sounds trivial, but after a full week of messing with mine a fresh sim-less start knocked out several bugs...and i hadn't read much of that on xda, but the AT&T return directions suggested a without sim boot up as the first thing to do? and at the time, i too, was dealing with some sort of varying degree of brick.
There are also varying ways to drain a permanent phone battery...i wouldn't say thats the best way to go about this, but a friend of mine has a screwed up car charger that does exactly this...which he's kept to bring his samsung nexus out of hard bricks multiple times...i'd say that's definitely a last resort though...the stuff you'd need would only be a couple bucks at radio shack i'd imagine haha.

If you get the Sony screen you should get in to flash mode, and I say should.
With the phone plugged in to PC with flashtool ready to flash, try to do a one vibration reset at Sony screen then immediately press and hold volume down.
Sent from my LT28i using xda app-developers app

My S4 mini won't turn on, doesn't vibrate, can't launch recovery or download

So a few hours back I picked up my phone, but it didn't respond. A few minutes earlier it worked fine, and now it just seems dead. I cannot launch recovery mode or download mode. The phone does not respond to me holding the power button or something, there is no vibration and no visuals on the screen. Removing the battery and plugging it back in does not work. Leaving it charge for a while does not work. (assuming that it even charges). When I plug in the phone into my PC via cable I hear a sound that something is connected, but it doesn't show up on 'My PC'.
What do I do?

The same happened to my sister! Nothing worked, probably the motherboard died. Used it at leaset for spare parts for my other s4 mini. Especially the LED panel is so precious, it's cost is like half the price of the phone.

TranceMusic2014 said:
The same happened to my sister! Nothing worked, probably the motherboard died. Used it at leaset for spare parts for my other s4 mini. Especially the LED panel is so precious, it's cost is like half the price of the phone.
Click to expand...
Click to collapse
Can the motherboard really die like that? One moment its fine, the next second dead?

jeekay said:
Can the motherboard really die like that? One moment its fine, the next second dead?
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Click to collapse
Yeah, likely. I ain't a geek or sth, but the same happened to my sister. Was looking for a solution for hours, but it's probably some random variation in voltage or sth that burns some part on it and then it dies. You don't have to crack the phone etc., it can happen randomly.

TranceMusic2014 said:
Yeah, likely. I ain't a geek or sth, but the same happened to my sister. Was looking for a solution for hours, but it's probably some random variation in voltage or sth that burns some part on it and then it dies. You don't have to crack the phone etc., it can happen randomly.
Click to expand...
Click to collapse
Wouldn't a broken motherboard make my PC unable to make a sound when it's connected? Also, when it's connected to the PC and i hold the power button for ~15 seconds, it disconnects. This would mean that the power button still functions

jeekay said:
Wouldn't a broken motherboard make my PC unable to make a sound when it's connected? Also, when it's connected to the PC and i hold the power button for ~15 seconds, it disconnects. This would mean that the power button still functions
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Click to collapse
Then it's deffinitely NOT completely broken. A dead MB would definitely NOT identify the phone in the PC.
Did u try entering Download mode & connecting to ODIN, trying to load FW again?

TranceMusic2014 said:
Then it's deffinitely NOT completely broken. A dead MB would definitely NOT identify the phone in the PC.
Did u try entering Download mode & connecting to ODIN, trying to load FW again?
Click to expand...
Click to collapse
I cannot enter any mode. Pressing volume up or down + home + power doesnt do anything. How do I connect to Odin, and whats an FW?

jeekay said:
I cannot enter any mode. Pressing volume up or down + home + power doesnt do anything. How do I connect to Odin, and whats an FW?
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Click to collapse
FW = Firm Ware i.e. software that is flashed onto chips. aka ROM.
But if you can't go to download mode you can't flash stock ROM again. So Yes sounds likely some component has failed or maybe just a bad solder joint, a short, etc) which is not allowing power up,( either way you need someone to fix hardware & install stock using jtag for you, probably not worth the cost on our old phones in most countries. but if you can buy a used phone with eg a damaged screen or other problem you may be able to get 1 working phone by swapping parts eg power board ...

The same happened to me last august... I posted here, but no one ever helped me https://forum.xda-developers.com/galaxy-s4-mini/help/weird-bricked-gt-i9195-stuck-black-t3619023 i just think that it's some kind of programmed obsolescence, my phone was 4 years old and it just shut off and never light up again after closing a simple call... F*** Sammy and their timers!

Just happened my nephews phone. Was intermittently responding to buttons and now not at all. PC detects it and shows as "HS-USB Diagnostics 9008" in Device Manager.
There are a couple of guides online for using applications on the PC to interact with the phone using this device ID, but it seems to be mainly focused on LG phones. Anyone know if there's anything that can be done for Samsung devices?

The exact thing happend to my S4, it suddenly turnd of while im using it, did anyone find a solution?