Database Develop

[Q] Galaxy Tab not recharging

Have my Galaxy Tab for about 1 month, without any problems.
I recently noticed that the Tab is not recharging anymore.
When I plug in the USB charger that came with the Tab, it will very quickly charge to 100% (and I suppose stop charging at that moment)
When I then unplug th device and start using it, I can see it count down the Batterylevel in the Status screen. It counts down the batterylevel from 99% to 15% in a matter of minutes, at which point it tells me to plug in the power cable.
Does anybody have similar experience, or is my tab simply broken?

You should send it back to Samsung for warranty claim. This is very likely a batt failure

Update:
I have done a hard reset of the device and recharged it to 100%.
I was able to use it during several days, in a normal fashion, meaning that I use it during the day, and in the evening let it recharge.
So, the problem seemed to have disappeared. This suggests to me that it must be a software or configuration problem, not hardware related.
However, today I'm again in the same situation again.
I already installed the OS monitor tool to check on active processes and their cpu consumption, but nothing abnormal there :-(
Anybody any suggestions on where to look next to try to figure this out?
thanks

Hi,
I have the same problem. I use my Tab for a month and it always works well until last friday.
In the morning I pull out the chargerplug and after a minute or so the Tab tell's me that I needs to charge and when I putt it on charge after 10 sec's it's fully charge.
So I call samsung support and they told me to bring the Tab to the repaircenter and that's what I want to going to do last friday. But before I bring my Tab I complete hard reset my Tab.
Today tuesday I get a call from the repaircenter that they cannot find any problem what so ever and the battery is hours draining.
They ask if I use a memory card and I say that I was using one (sandisk 16gb) and they ask if I can bring it over so they can test it.
But when I insert the card everything stay's as normal, so I take my Tab at home without a repair and restore my backup with Titanium Backup and I have the same settings as last friday.
This is given me not a fine feeling as I realy tust on my Tab and hope this was a one time only.
Sent from my GT-P1000 using XDA App

jawadde said:
Have my Galaxy Tab for about 1 month, without any problems.
I recently noticed that the Tab is not recharging anymore.
When I plug in the USB charger that came with the Tab, it will very quickly charge to 100% (and I suppose stop charging at that moment)
When I then unplug th device and start using it, I can see it count down the Batterylevel in the Status screen. It counts down the batterylevel from 99% to 15% in a matter of minutes, at which point it tells me to plug in the power cable.
Does anybody have similar experience, or is my tab simply broken?
Click to expand...
Click to collapse
I have the same problem....pretty sure it's not the charger too.
Anyone else have this issue?

strawdog74 said:
I have the same problem....pretty sure it's not the charger too.
Anyone else have this issue?
Click to expand...
Click to collapse
If you are adventurous, please try this, as I have encountered the same issues previously. By disconnecting and connecting the battery, it somehow reset the battery memory in the processor and everything works fine after that.
You can read the thread for more information: http://forum.xda-developers.com/showthread.php?t=986067

Battery issues.
Hi..
I tried the rebooting the phone method by pressing the power on key along with up volume key.
I saw four options and I selected the first one i.e. Reboot. I noticed a triangle with ! inside it and symbol of android. I left the SGT in the same mode for an hr after which nothing happened. I powered off the tab . And when I tried to power on, the tab was not all getting powered on..
I am really worrying what could be the wrong.. !
Please some one help me to bring back my tab to life...

I think that you have to reset your battery stats.It is very simple in clockworkmod recovery (aka CWM). I don't know how to do that on stock rom, but you can search this information.
Regards.

[Q] Phone only boots when it is connected to a power source

A friend of mine accidently ran over the cable when I was charging my phone. For sure the phone fell on the floor and also the battery dropped out. Since then, the SGS only starts if it is connected to a power source. It's futile if the USB-Cable isn't connected to a PC or a socket (alternatively, I'm able to restart the phone out of the Power Menu). Without the connection, only the battery charge symbol appears for a second when I try to boot the phone or get into Recovery-/Downloadmode.
I've wiped the Battery Stats as well as tried it with another battery - bootless. I just hope it's not a hardware damage

I have this same problem, but i can go easy to download mode, i try everything and i dont know what i need to do, but i see one, On GB i dont have this problem I mean official GB kernel, bcz on Kernels based on froyo like cm7, i have the charing icon on boot i dont know what i have to do.. maybe someone know?

This question has from memory been asked before .
A search may provide the answer .
Probably worth taking to a service centre .
jje

Try cleaning the battery contact points and re seat the battery correctly. It might work.

Problem solved
Apparently it actually was a software problem. I've upgraded my ROM with wipe, and after that I charged the phone completely when it was off. Now I can start the SGS without problems. So, I don't know what exactly solved the issue, but at least it functions again.

[Q] Strange boot problem. Battery empty loop.

Hi all!
So now i have this strange boot problem.
My i9000 came on FRoYO with totally drained battery. I charged to full and then could turn the phone on.
It connected to my WLAN and everything seemed fine. I did not test with my SIM card inserted but thought it would not be necessary because
i wanted to root it anyway.
So i got heimdall on my Linux and followed the instructions given here:
http://forum.xda-developers.com/showthread.php?t=1196179
I flashed the XWJVZ version and it seemed to be o.k. like above.
Now i followed the instructions on Cyanogen website on how to root the phone.
I got the Semaphore recovery kernel flashed and the CM11 M5 snapshot plus gaaps.
Everything turned out to be fine but only with the charger connected or the usb into the pc.
Finally i got everything up and running and inserted my SIM card and booted up again.
This time without charger.
I noticed the "empty battery symbol" flashing twice, blank screen, flashing etc..
Connected the charger, it starts charging and shows 90% charge.
Disconnected the charger. Booted, Everything fine.
So i began to read about the problem and tried a few things.
I used the battery from my second i9000, which is on CM10.2 running nicely.
I cleaned the battery contacts and the usb.
I re-inserted SIM several times.
No avail.
The phone sometimes shows empty battery but boots up on looong press of power on.
But anytime there is no cell communication, it shows "no baseband" and no IMEI.
I can connect a charger or a usb on the pc and -poof- SIM PIN is required to get on and everything is fine.
Baseband is shown. Correct IMEI as well.
So i thought maybe something had gone wrong during flashing. I removed "batterystats-files".
I wiped everything and flashed again.
I downgrade to stock rom with heimdall, see above and tested with SIM.
It seemed to be o.k. but i have to admit that i don't know if i had sit the phone in power off state long enough to see.
I upgraded to CM9 and got stuck with the problem.
I upgrade from CM9 to CM10.2 which was a drag because of the new partition layout.
Finally got it working with the same problem.
One difference: After shutdown the screen is blank and no "empty bat symbol" is shown.
If i connect the charger, the empty bat is shown flashing, going away, starts charging. Boots o.k. if done with charger.
Also:
A reboot alsways works if done immediately after shutdown!
State now:
I can make phone calls and everything after this until battery is low. I can charge in ON state and continue forever.
But every time i shutdown the phone and let it sit for some minutes it has the "inside empty bat situation" which will allow to boot
but does not recognize the SIM card.
I am really stuck on that.
My second i9000 came prerooted and ran on CM11 nightly which i downgraded to CM10.2 stable for productive use.
This is phone is fine with the battery from my problem child.
Any advice?
Thanks in advance,
Frank

found this thread, not sure if it'll help http://forum.xda-developers.com/showthread.php?t=1923225

Nearly, but not exactly
pryerlee said:
found this thread, not sure if it'll help http://forum.xda-developers.com/showthread.php?t=1923225
Click to expand...
Click to collapse
In between time i went back to 10.2 stable without gaaps. Nothing much changed...
Alas:
Thanks alot for the quick response.
Nearly the same case here. Maybe the solutiion is posted in #31. Charging and draining to empty or so.
As said if i connect a charger the device boots, i can enter my SIM Pin and everything is fine.
If it is booted up i remove the charger, battery still over 80%. Everything works.
I shutdown, wait for a minute, power on.
Now wait, after the last clean wipe and install: It does not bootloop to battery empty. It boots up to the lock screen but without asking for the SIM Pin.
If i do nothing the phone keeps booting after a short while.
If i unlock the screen i can use the phone, including WLAN etc..but cannot make a call because baseband is empty.
Connecting the charger or usb in that case immediately locks the screen and asks for SIM Pin. Everything is fine...
Strange.

So is it an original Samsung battery or 3rd party? And it works perfectly fine in another i9000?
tetakpatalked from the legendary i9000

tetakpatak said:
So is it an original Samsung battery or 3rd party? And it works perfectly fine in another i9000?
tetakpatalked from the legendary i9000
Click to expand...
Click to collapse
Yes, both batteries are Samsung. Old, though.
Well, during the day, after some more testing i can reproduce as follows:
Stock firmware either flashed with Heimdall or ODIN result in no problems at power-up.
Rooting no problem
CM works fine with CM 9.1 stable. No more empty battery sign and every boot SIM Pin is asked.
Going from CM9.1 to CM10.2 stable results into trouble. Something happens on repartitioning.
The phone boots several times .
After that, reboot system, the system starts but forgets to aks about SIM instead giving me the message
to read the manual on how to insert a SIM
I am just going to give it a shot again flashing stock to CM11 M6 built in one big leap.
Wait: It just boots into the new system.
Wow: It is asking for a SIM Pin. I give it and the rest of the primary setup is localized to German.
What is this? Do i dare to reboot after the ROM has settled? I guess i must...
This time something is different. The whole process from going stock to CM11 was done without charger applied.
It works flawlessly.
Hold your breath: I am going into shutdown.
Will a nandroid backup BEFORE next reboot.

SOLVED: Battery empty loop etc.
Dear readers: My issue has been solved.
To sum it up:
1.
The flashing battery symbol has not necessarily something to do with the battery state.
If you notice that your charge is good either when connecting a charger and check the bat symbol or if the system is up than it
is not the cause of trouble.
2.
Wiping batteriestats files is senseless. I see them on adb or on the file browser. They are always made new on time
a charger is disconnected. Maybe if one wants to calibrate the battery notifier it makes sense.
Not for this problem.
3.
If the battery is charged and you see some kind of battery bootloop then it really is a bootloop.
The only remedy is to go back to stock and see if it is there, too.
IF it is there, then most probably there is something worng in the hardware, i guess.
So clean your battery poles with a fine grain of sandpaper (carefully!!!) or use a sort rubber we use in school to erase
uneraseable ink (do not know the word for "Tusche", sorry).
Clean the usb port with pressurized air used for cameras. Apply a small (!) amount of TESLANOL or Tuner spray or something else
for gold contacts.
Do this also for the contacts of the SIM and battery inside the case. Use Q-Tipps to apply and dry thoroughly.
Replace your battery if nothing helps.
On stock firmware no battery bootloops ever occur, i guess otherwise cellphones would not sell.
4.
After going back to stock root your phone as usual.
You should confirm that one of the first stable CM or other mods reported to work fine work fine for you, too.
Go back to stock again and try large leaps through your ROMs.
I guess this is the way to go, finally.
In my case coming from CM 9.1 to 10.2 did something. I noticed the phone boot several times during flashing, due to repartitioning always
coming back without fault but in the end not fully functioning.
So my solution, after the battery bootloop went away which i tend to say is the result of charging and cleaning and going back
to stock WITH SIM and testing is:
Make huge leaps. It has to work or dump it.
If anything new occurs i will post in this reply.
Hope someone else can find valuable information in this thread.
Make yourself familiar with Heimdall. I found it to be much easier to use than Odin. But it depends on if you find the proper files to flash...
Best reagrds,
Frank

[Q] [PLEASE HELP] HTC One M7 not charging when on.

Device: HTC One (M7) Stock ROM
A few days ago, my never rooted, stock firmware, no unlocked boot loader, no custom ROM, never dropped HTC One (M7)'s battery died. Plugging in the charger had no effect, absolutely NOTHING. Tried 6 different cables and 9 different locations to charge it, nothing. Waited a while, dying in desperation. Then after so much of panic, I plugged it again, and randomly it started charging. But the charging had a loop - showed a bright orange LED with the power symbol on a battery for about 5 seconds, then a dim orange LED with the green battery charging, and a number, for about 10 seconds. The loop kept repeating. Eventually I could turn it on till the (incredibly low capacity) battery could live. So I did about 10 resets to it, and the situation would not improve.
Since my phone just decided to do this to me just before a long journey of mine, I was quite upset, and eventually infuriated to the limits. I decided to take it along and try different things to it - tried, tried, cleaned the ports, searched the net, nothing.
One fine day it decided to break the loop - now it charged, but only when off.
And today again its started the loop.
And here I am, begging for some help. I'm starting to hate this device now. Please help me.. :crying:
P.S. : I played a lot of Clash of Clans on the phone - it heated up a lot. Hope the info helps (Possible corrupted overheating charge instructions of the phone,etc.)

please help i love this phone cant lose this at all
AnubhavSaxena said:
Device: HTC One (M7) Stock ROM
A few days ago, my never rooted, stock firmware, no unlocked boot loader, no custom ROM, never dropped HTC One (M7)'s battery died. Plugging in the charger had no effect, absolutely NOTHING. Tried 6 different cables and 9 different locations to charge it, nothing. Waited a while, dying in desperation. Then after so much of panic, I plugged it again, and randomly it started charging. But the charging had a loop - showed a bright orange LED with the power symbol on a battery for about 5 seconds, then a dim orange LED with the green battery charging, and a number, for about 10 seconds. The loop kept repeating. Eventually I could turn it on till the (incredibly low capacity) battery could live. So I did about 10 resets to it, and the situation would not improve.
Since my phone just decided to do this to me just before a long journey of mine, I was quite upset, and eventually infuriated to the limits. I decided to take it along and try different things to it - tried, tried, cleaned the ports, searched the net, nothing.
One fine day it decided to break the loop - now it charged, but only when off.
And today again its started the loop.
And here I am, begging for some help. I'm starting to hate this device now. Please help me.. :crying:
P.S. : I played a lot of Clash of Clans on the phone - it heated up a lot. Hope the info helps (Possible corrupted overheating charge instructions of the phone,etc.)
Click to expand...
Click to collapse
I am having the same exact problem right now. its very annoying. I have to drain the whole battery to charge it again. and its in that loop that you mentioned. plus it does not charge when you put it on charge when its on. it doesnt even have that charging light. it only charges itself if its off and if there is no battery left, i have to put it on charge by draining the whole battery by using apps and stuff and i am so pissed right now i cant find a solution to this. Did you find a solution on how to get this fixed?

I am currently having a similar problem where I can only charge my phone if off. Hopefully someone can help!

[SOLVED]
parthami said:
I am currently having a similar problem where I can only charge my phone if off. Hopefully someone can help!
Click to expand...
Click to collapse
I have found a solution to this. I am really happy since i am able to use my phone again.
Let me state what exactly i was going through.
I had to use the phone till it actually turned off completely consuming the whole battery and it was very frustrating because i had to deliberately use the phone till the phone shuts down and charge it. And once it started charging, it has a weird stupid way of charging. It shows that its charging and it goes off, comes back on and shows its charging, then it goes off... When it goes off the red light goes away...then comes back on.
I've read other threads and forums about people having the same issue. Others say they're not even able to connect their phones to the computer. You all should try connecting your phone to a computer and check if its able to transfer data.
If that happens, then you're saved. Because this really worked out for me.
Now, i'm not really sure what kind of bug this is, but here's how you fix this.
If you're able to transfer data to your phone, you must browse your phone on the computer and copy a file (or a couple of files - in my case i transferred a movie folder that had a couple files in it)
And guess what..i put it on charge and started charging like normal oh my god i was happy as hell
Thanks. I hope the same works for you all, people have been saying you have to clean the charging port but not really

trapboi187 said:
I have found a solution to this. I am really happy since i am able to use my phone again.
Let me state what exactly i was going through.
I had to use the phone till it actually turned off completely consuming the whole battery and it was very frustrating because i had to deliberately use the phone till the phone shuts down and charge it. And once it started charging, it has a weird stupid way of charging. It shows that its charging and it goes off, comes back on and shows its charging, then it goes off... When it goes off the red light goes away...then comes back on.
I've read other threads and forums about people having the same issue. Others say they're not even able to connect their phones to the computer. You all should try connecting your phone to a computer and check if its able to transfer data.
If that happens, then you're saved. Because this really worked out for me.
Now, i'm not really sure what kind of bug this is, but here's how you fix this.
If you're able to transfer data to your phone, you must browse your phone on the computer and copy a file (or a couple of files - in my case i transferred a movie folder that had a couple files in it)
And guess what..i put it on charge and started charging like normal oh my god i was happy as hell
Thanks. I hope the same works for you all, people have been saying you have to clean the charging port but not really
Click to expand...
Click to collapse
I have the very same problem, my phone will only charge when the battery is completely drained, now i have like 25% and tried your way, my pc doesnt detect the phone :/
I tried with and withouth usb debug mode. :crying::crying::crying::crying:
Is this a sotware problem i guess? it wouldnt charge at all if it was hardware right?
Just checked and my phone now says "the usb host cable is plugged in, cant charge the device"

.
Laderiva said:
I have the very same problem, my phone will only charge when the battery is completely drained, now i have like 25% and tried your way, my pc doesnt detect the phone :/
I tried with and withouth usb debug mode. :crying::crying::crying::crying:
Is this a sotware problem i guess? it wouldnt charge at all if it was hardware right?
Just checked and my phone now says "the usb host cable is plugged in, cant charge the device"
Click to expand...
Click to collapse
I'm not sure how are you NOT able to get it connected to your computer. Since i connected it to the computer, it didn't start charging but it allowed me to transfer files. And so i did. You might wanna change the cable and check if its letting you connect to your PC.
So far its working perfectly alright. I don't have a problem as such. And wait, you could install a file manager and move a couple files around. Maybe delete some files or download some files and try.
I Hope it works for everyone who's getting this problem. I know its not a hardware problem and HTC support sucks BIG time. i don't even have htc headquarters so i couldn't get it replaced, bad. but if your phone is under warranty you must get it replaced :laugh:

trapboi187 said:
I'm not sure how are you NOT able to get it connected to your computer. Since i connected it to the computer, it didn't start charging but it allowed me to transfer files. And so i did. You might wanna change the cable and check if its letting you connect to your PC.
So far its working perfectly alright. I don't have a problem as such. And wait, you could install a file manager and move a couple files around. Maybe delete some files or download some files and try.
I Hope it works for everyone who's getting this problem. I know its not a hardware problem and HTC support sucks BIG time. i don't even have htc headquarters so i couldn't get it replaced, bad. but if your phone is under warranty you must get it replaced :laugh:
Click to expand...
Click to collapse
Hi! so you are saying that if i move some files from the computer to the phone it might get fixed? Well, i cant plug it to the computer, it just doesnt recognize the phone, if i plug it when the phone is on the pc doesnt show anything and the phone doesnt charge or anything, just like when trying to charge it with the ac charger, if i plug it with to the pc with the phone off then it shows a message that doesnt recognize the device, and the phone doesnt even charge aswell...
Right now the only fix i have found is to solve the problem of having to drain the battery in order to charge the phone, now i fixed it unticking the fastboot option in energy, now i can charge with any % but the phone must be off. Btw it gets a lot of heat while charging it this way... idk if its normal, i heard that because the aliminium case it gets more heat than normal plastic cases.
Thanks for your reply, ill try to connect the phone to the pc a few more times.

Hello guys , , I have the same problem , charging the M7 (On stock rom), I have tried many things ,roms and kernels , currently I managed to make it charge with the screen on with some conditions..
I installed SLIM ROM from their site (4.4.4) . To charge the phone with screen on I have to check "screen on while charging" (because if the screen goes off it stops charging /same thing if somebody is calling me )
To Charge my phone I just need to Reboot normally and charge it ( if you install this rom Activate the sound for the ac plug/unplug so you can know if it is charging well or not )
Eaven if i have to do these things its better then the OFF mode .
Hope It helps .

HTC M7 Only charges when it's off and the laptop can't recognize the device.
Hello, I've had this HTC M7 since last year. It's worked perfectly until a couple days ago.
The phone will not charge when it's on. It only charges when it's off. Also, my laptop won't recognize the device. I've tried with a couple different AC chargers, but no luck.
Sometimes my phone says "CAN'T CHARGE WHILE IN USB HOST MODE," and I don't know how to take it out of USB Host mode? I'm guessing this is a problem with the software. Before this happened the phone worked flawlessly.
Any help, please??!!
alexandru.j91 said:
Hello guys , , I have the same problem , charging the M7 (On stock rom), I have tried many things ,roms and kernels , currently I managed to make it charge with the screen on with some conditions..
I installed SLIM ROM from their site (4.4.4) . To charge the phone with screen on I have to check "screen on while charging" (because if the screen goes off it stops charging /same thing if somebody is calling me )
To Charge my phone I just need to Reboot normally and charge it ( if you install this rom Activate the sound for the ac plug/unplug so you can know if it is charging well or not )
Eaven if i have to do these things its better then the OFF mode .
Hope It helps .
Click to expand...
Click to collapse

cathesys said:
Hello, I've had this HTC M7 since last year. It's worked perfectly until a couple days ago.
The phone will not charge when it's on. It only charges when it's off. Also, my laptop won't recognize the device. I've tried with a couple different AC chargers, but no luck.
Sometimes my phone says "CAN'T CHARGE WHILE IN USB HOST MODE," and I don't know how to take it out of USB Host mode? I'm guessing this is a problem with the software. Before this happened the phone worked flawlessly.
Any help, please??!!
Click to expand...
Click to collapse
It can sometimes be caused by a defective usb port on the phone, does your port looks damaged? Boot your phone in safe mode and check if its doing the same thing.

I've already done that and it doesn't work.
I really don't know what the issue is? I mean this is a perfectly working unlocked HTC M7.
I've turned if off multiple times and even wiped it clean twice. I don't know what else it could be.
I mean it's been working perfectly since I got it.
But as I mentioned earlier it will only charge while the phone is off. And my laptop can't recognized it either.
It only appears and "Unknown Device."
But even when it is off it charges for a bit and then it completely stops.
Then you see the battery logo and then it starts charging again. But it repeat that same process throughout the whole time. So, it can never reach to 100%.
As I've mentioned before I've never really had this problem.
I've been looking for hours on the internet and so far nothing seems to work. There was an app I saw on to access engineer mode or something, but for some reason I can't use that app because it says that I'm missing another application.
Any thoughts??
alray said:
It can sometimes be caused by a defective usb port on the phone, does your port looks damaged? Boot your phone in safe mode and check if its doing the same thing.
Click to expand...
Click to collapse

I have the same problem, it can't charge, PC don't recognize when the phone is on android, but when i boot into recovery everything work fine (charge or data move to PC), so far i could't find any way better.

Hi,
had same problem.
Clearing system cache helped in my case.
Related cause for the trouble seem to be a couple of OTA upgrades I did recently.
(I was on a pretty old version.)
I noticed that there was something wrong while upgrading.
Even though the phone was connected to the charger while the whole upgrade process,
battery level went down...
The following procedure is your own risk!
Be careful not to choose any options that wipe all your data or factory reset your device.
This is how I cleared the system cache :
Boot into recovery (hold both volume-down and power buttons for ~30 seconds until menu shows - )
Press volume-down to choose RECOVERY and press power button.
Be patient ~60 seconds until menu appears.
Choose wipe cache partition and press power button.
Choose reboot system and press power button.
I hope this helps you.
Thanks
v

[HELP] Samsung Galaxy SIII LTE GT-I9305 won't turn on or charge, no reaction.

Phone: Samsung Galaxy SIII LTE GT-I9305
Problem: It doesn't turn on or charge, absolutely no reaction
ROM: Stock KitKat 4.4.4
The phone had the stock KitKat 4.4.4 flashed by me in 2016. For about 4 years everything was ok, it only occasionally hanged up so it needed to be restarted by removing battery or holding volup+power. Also at the end the charging port sometimes caused little problems so it was a lil fussy about the cable. Half a year ago the phone was replaced by a new one, so it was shutted off and put 'as is' into the locker without removing the battery (was fully charged before). Few days ago, when I needed it as a backup phone it doesn't boot up or charge the battery - there is absolutely no reaction. The battery measured by micrometer showed 3.87V - I've fully charged it in an external charger. I also cleaned the charging port and folded back the pins in it. Checked with the multimeter the contracts looks good, the current is able to flow. Anyway the phone is not charging and nothing happens when I'm pressing the power or even the mode combinations volumeup/down key + home + power for more than 30 seconds. It looks like there is flowing a 0.11A current and a battery voltage drops about 0.06V when it's connected to charger and I'm pressing the power button. The power button itself is ok, I've tested it with a multimeter. Nothing changes when I'm connecting the charger directly for the pins for battery.
So I've checked on the web that there is a common problem in that models called "sudden death" so the memory gets damaged after some time if using the stock old kernel. It had the symptoms (hangs, restarts) but I even didn't know about that problem, and I only know that it had a stock KitKat, don't know anything about the bootloader or kernel versions. But is it possible that the phone which was turned off and only laid with battery inserted in a locker for half a year get damaged?
I've tried connecting the usb jig, the "debrick.img" sdcard method (I've created the image by myself with the stock ROM file using a tutorial), the uart connection with both 150K and 560K resistors and NOTHING seems to work. Is there anything else that I could possibly try doing by myself to get it back to work? I'm afraid that the only way is replacing the memory or trying to re-flash it in an external programmer. The phone has MHL and LTE so would be good as an multimedia and web player for an old TV so I would like to save it. But anyway, at this moment it's a hard brick. Please help.

Mmmh i think its memory is dead, my s3 dead same u s3, and no response from anything, I change s3 motherboard with lte version.

Yea, it looks like the most probable cause is damaged eMMC chip on board. I only wonder why it got damaged just lying switched off in the locker, the battery was in unfortunately so maybe that matters. Probably replacing only the eMMC memory with a new, programmed one would fix the problem. Anyway, because it's nothing to be quite sure about, UART doesn't work to make sure about it and the current value of the used working phone is close to the eMMC chip it's not worth it and it's probably time to just toss it out or sell as an parts donor. So sad, that Samsung didn't send any notification about that problem directly to the phone via the notification channel, I had no idea about that problem before. Fortunately I've migrated all the crucial data to the new phone before so it's not a big loose at all. Thanks anyway.

ah Mathey, when my default smartphone was s3 i usually was turn off it when i going to sleep and one day without signal my phone not want turning on when i woke up that morning, i have a charger that do a little beep when a device is conneted to it and s3 was do it but not turn on.

So maybe half a year ago when I was doing data transfer to a new phone it was the last time when the memory was in good condition, sth caused damage and the next boot was not possible, but the time I tried to do that was the few days ago. Fortunately I've moved everything crucial, so it's not a big lost. We could only wonder if leaving the phone with the battery inside can cause the problem or that's something what happens only when the phone is on and after a reboot there is no guarantee it will start up. Someone told me that GT-I9300 with the same problem could be bringed back to life just by USB, but the GT-I9305 have a different memory chip and that's not possible. Only the external programming. Sad but true :|