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Someone please tell me if my phone is soft-bricked or hard-bricked,.

Can someone please tell me if my Sprint Galaxy S3 is soft-bricked, hard-bricked, needs a new motherboard, or just needs a new screen / digitizer? Here are the symptoms:
The battery is fully charged. I tested it in another Galaxy S3.
It stopped working right after I restored CM11 via TWRP. It died upon reboot.
The phone doesn’t turn on when the power button is held down.
The phone doesn’t vibrate when the power button is held down.
The phone doesn't make any sounds.
The phone cannot get into ODIN Download mode.
ODIN cannot detect the phone.
The phone cannot get into Recovery Mode.
The screen stays black no matter what I do.
When connected to my PC via USB cable it does the following:
• My PC will make a sound when I hold down the power button for a few seconds.
• If I take out the battery while it is connected to my PC, the red light will come on.
I have tried the following:
• Taking out the battery and holding down the power button for one minute.
• Making my own boot card by using my microSD card.
• Making my own boot card by using my USB flash drive.
• I have ordered a debricker device from eBay and I am waiting for it to arrive.
• I haven’t tried JTAG.

Gurren Lagann said:
Can someone please tell me if my Sprint Galaxy S3 is soft-bricked, hard-bricked, needs a new motherboard, or just needs a new screen / digitizer? Here are the symptoms:
The battery is fully charged. I tested it in another Galaxy S3.
It stopped working right after I restored CM11 via TWRP. It died upon reboot.
The phone doesn’t turn on when the power button is held down.
The phone doesn’t vibrate when the power button is held down.
The phone doesn't make any sounds.
The phone cannot get into ODIN Download mode.
ODIN cannot detect the phone.
The phone cannot get into Recovery Mode.
The screen stays black no matter what I do.
When connected to my PC via USB cable it does the following:
• My PC will make a sound when I hold down the power button for a few seconds.
• If I take out the battery while it is connected to my PC, the red light will come on.
I have tried the following:
• Taking out the battery and holding down the power button for one minute.
• Making my own boot card by using my microSD card.
• Making my own boot card by using my USB flash drive.
• I have ordered a debricker device from eBay and I am waiting for it to arrive.
• I haven’t tried JTAG.
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Click to collapse
Fairly sure from what you have told us that it is a proper device brick !
This happened to me before and it is VERY annoying expecially seen as though there is no real way out of it !
The only suggestion i would of had is to boot into the download mode but you have already tried that ! Hopefully the debricking jig will work for you !

W18WAR said:
Fairly sure from what you have told us that it is a proper device brick !
This happened to me before and it is VERY annoying expecially seen as though there is no real way out of it !
The only suggestion i would of had is to boot into the download mode but you have already tried that ! Hopefully the debricking jig will work for you !
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Sadly, it didn't work.

[Q] Kolina K100+ dead - help needed

Hello,
[admin; if this post is more appropriately placed somewhere else in the forum, then please move it]
Before giving up on my cellphone and resort to ordering a new one I'll ask for help here too.
Phone is a Kolina K100+ (chinese phone) running android 4.2. It is rooted but it is still running stock ROM (to my knowledge, I bought it new and have not tinkered with the ROM).
Current situation is that the phone is completely dead.
Dead as in turned off, does not light the LED when inserting the charger cable, does not react to any button presses, or combination of button presses.
I have actually no idea what have caused this situation. Granted, the phone has accidentially been dropped twice the last week but it did not turn itself off at any of the occasions. Yesterday, I noticed that the phone had turned off and I tried to turn it on. After a while I got it to go at least to the boot screen but after having to put it away (was actually standing in a line and it was my turn...) it was dead when I was able to reach for it again and after that the phone has been completely dead.
When connecting the USB cable to the computer the computer detects an unknown USB device but cannot seem to install any drivers.
Button combinations I have tried;
- power on button
- long press (~1minute) on power button
- volume down + power button
- volume up + power button
- volume up + volume down + power button
- home button (touchscreen button that is) + power button
...no luck with either combination, no reaction at all from the phone.
I have also managed to pull off the back cover from the phone and was able to disconnect the battery connector and let it lay completely powerless for a few hours before reconnect the battery to the phone and reassemble the back cover.
Any suggestions on if there are any other measures I can do or if there is something I have overlooked in trying to resurrect it?

same problem here phone just stop work i dont know why .

malamas said:
same problem here phone just stop work i dont know why .
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Do you still have the phone? I would buy it! I need the LCD but I could not find any...

Oltcit said:
Do you still have the phone? I would buy it! I need the LCD but I could not find any...
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sorry im late. i have the phone like a new contition . if you like to buy i give you but im live in greece

Power on without power button

The power button of my S8+ suddenly stopped working yesterday. All was good until I forgot to charge the phone. Now it's turned off and I can't turn it back on.
Can I turn on the device without using the power button?

I think you can, put it to charge.

I really want to know did it work??

Any alarms set on your device?
If so, you can power it on while ringing alarm.

I don't think you really can turn on the device if it turn off before charging and you can't press the power button.
Let us know if you can actually do it.
If not, you will have to change the power button. There is no any other alternative.

samcex said:
I think you can, put it to charge.
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Simply charging it didn't turn on the device. I was able to turn the device on with the power button. It suddenly worked again.
I looked online and there used to be a USB jig which forces the phone into recovery mode for older devices. Does anybody know if there's also one for s8?

ICEPower47 said:
Simply charging it didn't turn on the device. I was able to turn the device on with the power button. It suddenly worked again.
I looked online and there used to be a USB jig which forces the phone into recovery mode for older devices. Does anybody know if there's also one for s8?
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Different resistor values on the pins of the charger will do certain things look into 609k resistor jigs

Samsung J4 Core Bootloader

Hi guys, I can’t seem to find this anywhere on the forums.
I’ve inherited a Samsung J4 Core for a work mobile. It currently doesn’t turn on properly, but I know there is charge.
When I hold down the power button + Up & Down keys, this should boot into the Bootloader. My issue is that it boots up, but then quickly shuts down after a brief blue screen with what looks like a yellow triangle and the laying down Android robot.
Being as I can’t access the Bootloader, it doesn’t appear I can wipe/clear the rom properly. Does anyone know a work around as I obviously need this for a work mobile.
Thanks.

MisterWhippy said:
Hi guys, I can’t seem to find this anywhere on the forums.
I’ve inherited a Samsung J4 Core for a work mobile. It currently doesn’t turn on properly, but I know there is charge.
When I hold down the power button + Up & Down keys, this should boot into the Bootloader. My issue is that it boots up, but then quickly shuts down after a brief blue screen with what looks like a yellow triangle and the laying down Android robot.
Being as I can’t access the Bootloader, it doesn’t appear I can wipe/clear the rom properly. Does anyone know a work around as I obviously need this for a work mobile.
Thanks.
Click to expand...
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Download mode is Power + VOL down + VOL UP with USB cable plugged in.
The blue screen you are talking about is recovery mode. If it shuts off like you say the battery is completely flat.

ashyx said:
Download mode is Power + VOL down + VOL UP with USB cable plugged in.
The blue screen you are talking about is recovery mode. If it shuts off like you say the battery is completely flat.
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It's bizarre as I've had the phone charging via the normal wall charger overnight and it still has the same results. Likewise with your above method with all the keys held down I'm still getting the same error. I'm now at a point where I haven't a clue what to do.

MisterWhippy said:
It's bizarre as I've had the phone charging via the normal wall charger overnight and it still has the same results. Likewise with your above method with all the keys held down I'm still getting the same error. I'm now at a point where I haven't a clue what to do.
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If you don't see the charging symbol it won't charge in this state.
The only method I know is to boot it to the download mode confirmation screen and leave it in that state while charging it overnight (may even take longer). There will be no charging notification.
Once it has at least 1% charge it should be possible to boot to Recovery mode with the USB cable attached and charge it properly.

ashyx said:
If you don't see the charging symbol it won't charge in this state.
The only method I know is to boot it to the download mode confirmation screen and leave it in that state while charging it overnight (may even take longer). There will be no charging notification.
Once it has at least 1% charge it should be possible to boot to Recovery mode with the USB cable attached and charge it properly.
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Thanks, but even with that, it won't boot into the download mode either - just flashes and turns straight off., even with the USB cable plugged into my laptop.

MisterWhippy said:
Thanks, but even with that, it won't boot into the download mode either - just flashes and turns straight off., even with the USB cable plugged into my laptop.
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Are you talking about download mode itself or the blue confirmation screen?

ashyx said:
Are you talking about download mode itself or the blue confirmation screen?
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Everything. Using the method to get into the download mode itself, the phone turns on and for a brief moment a blue screen flashes with the yellow warning triangle and some, what I presume, error messages and the phone turns off.

Hi, One Plus that won't turn on, won't charge, won't get into recovery mode

Hi, I have a One Plus 8T that won't turn on, won't charge, won't get into recovery mode, the screen remains black, won't vibrate on changing ringing mode either and gets recognized as QUSB_BULK_CID:xxxx_SN:xxxxxxxx when connected to the laptop. Phone was in my hand and in a perfectly good condition when it happened. I tried all the physical keys and their combinations many times. Is there any solution to this?

Khursheed_1216 said:
Hi, I have a One Plus 8T that won't turn on, won't charge, won't get into recovery mode, the screen remains black, won't vibrate on changing ringing mode either and gets recognized as QUSB_BULK_CID:xxxx_SN:xxxxxxxx when connected to the laptop. Phone was in my hand and in a perfectly good condition when it happened. I tried all the physical keys and their combinations many times. Is there any solution to this?
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You're in EDL mode. Hold power button and volume up button until it reboots. Then see where you are. However, you may need to use this tool to flash back to stock - https://forum.xda-developers.com/t/...l-to-restore-your-device-to-oxygenos.4180837/

azoller1 said:
You're in EDL mode. Hold power button and volume up button until it reboots. Then see where you are. However, you may need to use this tool to flash back to stock - https://forum.xda-developers.com/t/...l-to-restore-your-device-to-oxygenos.4180837/
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Hi, Thank you for your reply dear. Mobile is not rebooting itself, everything is black on the screen. Is there anything else i can do ?

Khursheed_1216 said:
Hi, Thank you for your reply dear. Mobile is not rebooting itself, everything is black on the screen. Is there anything else i can do ?
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one thing i want to add here is when phone is conected to a laptop and i press Vol Up + Power key, i hear a beep on laptop (may be it does the reboot) but screen remains black. I dont think the issue is with the disoplay.

Then you will need to use the msm tool. Your phone seems to boot into EDL mode just fine. Follow the instructions in that link.