Hi
My phone was stuck at black screen with blue LED light. I waited for it to drain completely, and then charge it so I can flash new firmware. I enter download mode, flash new firmware and it was a success. It restarts and then stuck again on blue screen with Android robot and some like no signal tv effects on the screen, which I think it crashed. Then I forced restart it using vol down+power and it boots up with blue screen wtih "no command" error. I tried restarting it again and it fully dies on me. It won't turn on again.
Button combinations seem not working, no charging indications.
How can I fix this?
Is it bricked? If so, changing motherboard will fix this?
Try leaving it on charge for a while. The charging light should light up. When you go in recovery, on the "no command" screen, press and hold power button and press the vol. up button. That will take you to the admin / recovery screen.
I didn't know it either and was thinking the recovery is corrupt or not working. It is actually waiting for that command from you (power+vol. up). Once in, you can navigate through the menu using vol. up and down to move and power to select an option.
waqar747 said:
Try leaving it on charge for a while. The charging light should light up. When you go in recovery, on the "no command" screen, press and hold power button and press the vol. up button. That will take you to the admin / recovery screen.
I didn't know it either and was thinking the recovery is corrupt or not working. It is actually waiting for that command from you (power+vol. up). Once in, you can navigate through the menu using vol. up and down to move and power to select an option.
Click to expand...
Click to collapse
I manage to get the phone working again and booted up on "No Command" screen again. Holding vol up and power doesn't work. But I manage to do download mode instead, installed new firmware and again, it crashes after Odin successfully pass it.
I attached a photo of the crash.
Btw I think it's charging now but there's no LED light.
-_- Just both this few months ago.
EDIT: also when I restart my phone using vol down, home, and power keys to restart my phone then Vol up+power+home or without home, it skips the factory reset and jumps to "No Command" again. -_-
This is hardware failure.
Go to Samsung service.
darren6matthew said:
Try to flash firmware by restoring partitions with pit file, if not works after this means you have for sure hardware failure
Click to expand...
Click to collapse
Ok I will try that, but can you link me where can I download this pit file? thanks
Update:
I tried to downgrade it, and now I'm stuck installing updates, can't go past it. -_-
oh god, last time Lg G4 gave me headache and now my s7 edge is suffering from abnormalities too. -_-
I had this same problem, I sent the web store that I imported and I am waiting for answers, because it is still under warranty. With each passing day I see more of this problem happening, I find it very worrisome.
Its a hardware issue mate. Had this recently and changed the Mainboard. You should let it replaced if u are in warranty.
Greets
UPDATE:
After flashing different kinds of Nougat firmwares nothing happens. Charging light and key lights are dead at this point. Then I flashed some MM firmware, one of these firmware gives life back to the dead LED lights on the notification and keys but phone still can't get pass the blue screen with "erasing" or "installing updates" message. After multiple times of force rebooting it by pressing vol down+power, it booted itself to recovery mode(thanks god!) and I don't know why. Lol. Wipe cached it and factory reset and still brought me back to "erasing" or "installing updates" blue screen. Then finally, after flashing the UK stock MM, all lights came back to life. It's working fine right now and I don't think I'll update it to Android N just yet.
coowkeee said:
UPDATE:
After flashing different kinds of Nougat firmwares nothing happens. Charging light and key lights are dead at this point. Then I flashed some MM firmware, one of these firmware gives life back to the dead LED lights on the notification and keys but phone still can't get pass the blue screen with "erasing" or "installing updates" message. After multiple times of force rebooting it by pressing vol down+power, it booted itself to recovery mode(thanks god!) and I don't know why. Lol. Wipe cached it and factory reset and still brought me back to "erasing" or "installing updates" blue screen. Then finally, after flashing the UK stock MM, all lights came back to life. It's working fine right now and I don't think I'll update it to Android N just yet.
Click to expand...
Click to collapse
I'm facing the same problem, Can you pass me a step by step friend please?
Hello..my phone keeps flickering i dont know whats the problem..i already thurned it off many times but when i switch it on it keeps on flickering my phone is s7..i dont know what to do..hoping that somebody will answer me
coowkeee said:
UPDATE:
After flashing different kinds of Nougat firmwares nothing happens. Charging light and key lights are dead at this point. Then I flashed some MM firmware, one of these firmware gives life back to the dead LED lights on the notification and keys but phone still can't get pass the blue screen with "erasing" or "installing updates" message. After multiple times of force rebooting it by pressing vol down+power, it booted itself to recovery mode(thanks god!) and I don't know why. Lol. Wipe cached it and factory reset and still brought me back to "erasing" or "installing updates" blue screen. Then finally, after flashing the UK stock MM, all lights came back to life. It's working fine right now and I don't think I'll update it to Android N just yet.
Click to expand...
Click to collapse
bro may step by step ka ba panu mo nasolve? pareho kasi ng nangyari sa s7 ko
Related
i had a cyanogenmod for few months and this morning suddenly after i turn off my alarm clock the phone rebooted, and he now stuck in a boot loop of the cyanogenmod logo(blue circle), i tried to enter to recovery mode(power+vol down) and it shows me android with an ! logo and nothing else
i tried to flash with rsd 5.7 to stock and it still stuck on the boot logo(motorola logo) and still can't enter recovery mode
i tried to flash also to root sbf(BL7 if it matters) and the same thing
don't know what to do else, any help?
i have defy+
another problem that i have now that because i tried so many solutions that the battery is over and i cannot charge him(question mark on battery logo when i try to charge)
any help?
edit:i did the mcgyver solution to the battery, worked and i get to the bootloader with battery ok status, but still try every sbf and it stuck on "reboot your phone manually" on the rsd and when i get the battery out and put back in it just continue to loop =\
neorus666 said:
i had a cyanogenmod for few months and this morning suddenly after i turn off my alarm clock the phone rebooted, and he now stuck in a boot loop of the cyanogenmod logo(blue circle), i tried to enter to recovery mode(power+vol down) and it shows me android with an ! logo and nothing else
i tried to flash with rsd 5.7 to stock and it still stuck on the boot logo(motorola logo) and still can't enter recovery mode
i tried to flash also to root sbf(BL7 if it matters) and the same thing
don't know what to do else, any help?
i have defy+
another problem that i have now that because i tried so many solutions that the battery is over and i cannot charge him(question mark on battery logo when i try to charge)
any help?
edit:i did the mcgyver solution to the battery, worked and i get to the bootloader with battery ok status, but still try every sbf and it stuck on "reboot your phone manually" on the rsd and when i get the battery out and put back in it just continue to loop =\
Click to expand...
Click to collapse
I've had that happen several times. Sometimes clearing Cache works. Most of the times you have to wipe /data partition with Custom Recovery. Now, after flashing with RSD you must go into Stock Recovery, and wipe /data with Stock Recovery. That will get your phone to boot up.
That "android with an ! logo" is the Stock Recovery. If you were on CM you would have had 2init installed, so to go to the Bootmenu/Custom Recovery, you have to press the VOL - button when the blue light turns on, not before, or else you might go to Stock Recovery.
When I flash with RSD, I always wait for the phone to reboot, and right when it reboots, I press the VOL + button so that it goes back into Bootloader, that way in RSD it shows the "Pass" message right away.
Antiga Prime said:
I've had that happen several times. Sometimes clearing Cache works. Most of the times you have to wipe /data partition with Custom Recovery. Now, after flashing with RSD you must go into Stock Recovery, and wipe /data with Stock Recovery. That will get your phone to boot up.
That "android with an ! logo" is the Stock Recovery. If you were on CM you would have had 2init installed, so to go to the Bootmenu/Custom Recovery, you have to press the VOL - button when the blue light turns on, not before, or else you might go to Stock Recovery.
When I flash with RSD, I always wait for the phone to reboot, and right when it reboots, I press the VOL + button so that it goes back into Bootloader, that way in RSD it shows the "Pass" message right away.
Click to expand...
Click to collapse
i tried to press vol - when the blue light turns on but still i get to the "android with an ! logo" (if i was not mention it, on this screen i don't have any text at all, just the logo with out any options)
so i cannot clear cache or wipe any thing =\
edit: when i need to see the blue light? because i get only red(to a second when i turn on) and white when it connected mcgyver style
neorus666 said:
i tried to press vol - when the blue light turns on but still i get to the "android with an ! logo" (if i was not mention it, on this screen i don't have any text at all, just the logo with out any options)
so i cannot clear cache or wipe any thing =\
Click to expand...
Click to collapse
Well, it seems like you've never used the Stock Recovery before. When you get to that screen you need to press both Volume + and - so that it shows the options.
With some stock SBFs I think you have to press the bottom left or right corners of the touchscreen for it to show the options, don't remember which side it is, and sometimes it's hard to hit the right spot, but it's there alright. Try with both volume keys first.
If you do manage to get it to show the options, do a Factory Reset, which wipes Data for you. Although, if you just flashed a stock ROM with RSD, there should be no blue light, just so you know.
Antiga Prime said:
Well, it seems like you've never used the Stock Recovery before. When you get to that screen you need to press both Volume + and - so that it shows the options.
With some stock SBFs I think you have to press the bottom left or right corners of the touchscreen for it to show the options, don't remember which side it is, and sometimes it's hard to hit the right spot, but it's there alright. Try with both volume keys first.
If you do manage to get it to show the options, do a Factory Reset, which wipes Data for you. Although, if you just flashed a stock ROM with RSD, there should be no blue light, just so you know.
Click to expand...
Click to collapse
oh silly me, never tried the vol + and vol - options, i now cleared cache and wipe dara/factory reset and tried to boot and.. it works!!! i don't believe it works! wow thank you a lot! now i'm returning to cm and hope it never happens again =]
why does it happen any way?(after few months of use)
defy stuck on boot loop
Mines doing this boot loop after running great for about 5 months. Seems I'll be able to get it back using methods detailed here. But is there a way I can keep my sms's bearing in mind I've not performed a back up for the last 5 months?
Anyone?
Does the advanced backup utility backup my sms data, so that i can do a wipe data factory reset?
Antiga Prime said:
Well, it seems like you've never used the Stock Recovery before. When you get to that screen you need to press both Volume + and - so that it shows the options.
With some stock SBFs I think you have to press the bottom left or right corners of the touchscreen for it to show the options, don't remember which side it is, and sometimes it's hard to hit the right spot, but it's there alright. Try with both volume keys first.
If you do manage to get it to show the options, do a Factory Reset, which wipes Data for you. Although, if you just flashed a stock ROM with RSD, there should be no blue light, just so you know.
Click to expand...
Click to collapse
I hadn't been in Stock either - all I've seen was about Pwr+Vol- - I'm an S3 and working on the Defy for the missus. So, thanks for the tip.
try
try to flash a rom '
hit the thanks button :laugh:
download a custom rom or reinstall cynogen mod go into clockworkmod recovery sofe mode and do it
good luck:victory:
Dear experts,
Phone model: Karbonn A9+
Rom: Custom Rom Hyperion Skyfall
When I hold the power button, the phone turns on and off, No problems with that.
However, when I press volume Up+Power, I get a green screen saying FASTBOOT at the top left corner and that’s it. Nothing happens from that point.
when I press volume Up+Power, I get a green screen and holding the buttons past that I get a red screen saying RECOVERY at the top left corner and that’s it. Nothing happens from that point.
However, when I press volume down+Power, I get a black screen saying ENTRY QPST DOWNLOAD at the top and that’s it. Nothing happens from that point.
I have to remove the battery to turn my phone off.
Moreover, I tried a factory reset erasing internal and external storage, after erasing when the phone is rebooted and gets stuck in the start-up screen. I removed the battery and powered on the mobile ,no problem at all the phone turns on but not resettted.
What I did?
Tried to install latest CWM through recovery, updated it but I pressed something instead of restart your device.
What should I do to make everything work again? I am a noob in Android, please be extra patient and illustrative
Many thanks in advance
same issue
Paalagan said:
Dear experts,
Phone model: Karbonn A9+
Rom: Custom Rom Hyperion Skyfall
When I hold the power button, the phone turns on and off, No problems with that.
However, when I press volume Up+Power, I get a green screen saying FASTBOOT at the top left corner and that’s it. Nothing happens from that point.
when I press volume Up+Power, I get a green screen and holding the buttons past that I get a red screen saying RECOVERY at the top left corner and that’s it. Nothing happens from that point.
However, when I press volume down+Power, I get a black screen saying ENTRY QPST DOWNLOAD at the top and that’s it. Nothing happens from that point.
I have to remove the battery to turn my phone off.
Moreover, I tried a factory reset erasing internal and external storage, after erasing when the phone is rebooted and gets stuck in the start-up screen. I removed the battery and powered on the mobile ,no problem at all the phone turns on but not resettted.
What I did?
Tried to install latest CWM through recovery, updated it but I pressed something instead of restart your device.
What should I do to make everything work again? I am a noob in Android, please be extra patient and illustrative
Many thanks in advance
Click to expand...
Click to collapse
I am facing the same issue...today i flashed "ClockWorkMod_Recovery_V6_-_Karbonn_A15.zip" . It was flashed successfully. But after that whenever I try to enter recovery mode using Power+ Volume up keys, it shows red screen... thats it....i do not see typical recovery screen menu. However the screen turns full white. Only option is to take out the battery and restart the phone.
PLEASE PLEASE PLEASE HELP
I rooted with CF-auto method, phone worked fine. I downloaded CWM Rom Manager and downloaded CWM Recovery through the app. I decided to try and flash TRiforce 5.4 as my first ROM. Selected to back up everything and wipe clean with a full install. Towards the end There was a fatal error. It said it needed to be rebooted. I clicked reboot now. It said something about AROMA installer. Then rebooted. It showed the Galaxy s4 logo, then went black. I waited and waited and waited. And nothing happened. I tried pressing power and nothing would happen. I eventually pulled the battery out and reinserted. Upon pressing power, the same thing. It would show Galaxy s4 logo then go to black. I thought perhaps my battery died during install. Tried plugging in to A/C adapter and the battery logo pops up but the circle that usually continues to flow in a circle just freezes and does not flow. No light turns on to indicate charging. If I unplug the charger it is still frozen on the same charge screen. I popped my battery into a friends s4 and it charges fine, and is still at about 50% power. I've tried vol up+home+power, vol down+home+power and they both get the same results, just the galaxy s4 logo, then black screen. No booting whatsoever. Does this mean my phone is now bricked?:crying:
edit, vol down+ power has just gotten me into download mode! I guess I'll download a stock rom tomorrow and flash it via odin. Sucks because i don't have internet at my house. I'm at the library right now... 15 hours to dl stock rom lol...
ChrisHebert said:
I rooted with CF-auto method, phone worked fine. I downloaded CWM Rom Manager and downloaded CWM Recovery through the app. I decided to try and flash TRiforce 5.4 as my first ROM. Selected to back up everything and wipe clean with a full install. Towards the end There was a fatal error. It said it needed to be rebooted. I clicked reboot now. It said something about AROMA installer. Then rebooted. It showed the Galaxy s4 logo, then went black. I waited and waited and waited. And nothing happened. I tried pressing power and nothing would happen. I eventually pulled the battery out and reinserted. Upon pressing power, the same thing. It would show Galaxy s4 logo then go to black. I thought perhaps my battery died during install. Tried plugging in to A/C adapter and the battery logo pops up but the circle that usually continues to flow in a circle just freezes and does not flow. No light turns on to indicate charging. If I unplug the charger it is still frozen on the same charge screen. I popped my battery into a friends s4 and it charges fine, and is still at about 50% power. I've tried vol up+home+power, vol down+home+power and they both get the same results, just the galaxy s4 logo, then black screen. No booting whatsoever. Does this mean my phone is now bricked?:crying:
edit, vol down+ power has just gotten me into download mode! I guess I'll download a stock rom tomorrow and flash it via odin. Sucks because i don't have internet at my house. I'm at the library right now... 15 hours to dl stock rom lol...
Click to expand...
Click to collapse
What about volume up + power? if recovery boots you can try to flash in that otherwise you are stuck trying to use odin
ChrisHebert said:
I rooted with CF-auto method, phone worked fine. I downloaded CWM Rom Manager and downloaded CWM Recovery through the app. I decided to try and flash TRiforce 5.4 as my first ROM. Selected to back up everything and wipe clean with a full install. Towards the end There was a fatal error. It said it needed to be rebooted. I clicked reboot now. It said something about AROMA installer. Then rebooted. It showed the Galaxy s4 logo, then went black. I waited and waited and waited. And nothing happened. I tried pressing power and nothing would happen. I eventually pulled the battery out and reinserted. Upon pressing power, the same thing. It would show Galaxy s4 logo then go to black. I thought perhaps my battery died during install. Tried plugging in to A/C adapter and the battery logo pops up but the circle that usually continues to flow in a circle just freezes and does not flow. No light turns on to indicate charging. If I unplug the charger it is still frozen on the same charge screen. I popped my battery into a friends s4 and it charges fine, and is still at about 50% power. I've tried vol up+home+power, vol down+home+power and they both get the same results, just the galaxy s4 logo, then black screen. No booting whatsoever. Does this mean my phone is now bricked?:crying:
edit, vol down+ power has just gotten me into download mode! I guess I'll download a stock rom tomorrow and flash it via odin. Sucks because i don't have internet at my house. I'm at the library right now... 15 hours to dl stock rom lol...
Click to expand...
Click to collapse
Try going into recovery mode again by pressing get down the volume down and home button than finally the power button. The phone should vibrate and then as soon as the Samsung logo comes out let go of the buttons or else the phone will reboot again. Time it right so it goes into recovery
droidtom said:
Try going into recovery mode again by pressing get down the volume down and home button than finally the power button. The phone should vibrate and then as soon as the Samsung logo comes out let go of the buttons or else the phone will reboot again. Time it right so it goes into recovery
Click to expand...
Click to collapse
Have you fixed this issue, volume up +home+power is recovery mode, volume down+home+power is to download mode then u press up to complete
Rezzing old thread, I know. But I'm leaving this here in case anyone is poking around for clues to their s4 not powering on.
I have one that does not power on, as in bo combination of "press this and that..." is going to work (as if that isnt the first step in troubleshooting...I know not everyone does it right, but its really annoying when any post mentioning no power on/not responding to any key presses or charger plugin is full of "just try harder to boot it" posts..... Anyways...) The power pins register about half a volt, surging around from 100mV to ~3V . The battery does not charge and there us a constant slowly draining voltage on the power pins while unplugged and no battery.
The only clue Ive found so far us a youtube video of a no power on S4 having its power IC replaced which fixed it. Unfortunately I dont have the tools currently to try it, so at least mine, is still dead in the water.....
Hey guys my wife's S7 edge (SM-G935W8, Canadian variant) started rebooting and boot looping for a few days until it suddenly rebooted and stayed on with a black screen and the notification LED stayed blue until the battery died. Even holding home, power and volume down didn't do anything...
The phone was never rooted and completely stock. I just tried reinstalling stock firmware with Odin and everything went well as I got a pass but it still won't boot and gets stuck with black screen and blue LED.
Does this sound like a dead phone? I can't get into stock recovery, only download mode once the battery dies.
Just wondering if it's fixable.
Thanks
Dave O said:
Hey guys my wife's S7 edge (SM-G935W8, Canadian variant) started rebooting and boot looping for a few days until it suddenly rebooted and stayed on with a black screen and the notification LED stayed blue until the battery died. Even holding home, power and volume down didn't do anything...
The phone was never rooted and completely stock. I just tried reinstalling stock firmware with Odin and everything went well as I got a pass but it still won't boot and gets stuck with black screen and blue LED.
Does this sound like a dead phone? I can't get into stock recovery, only download mode once the battery dies.
Just wondering if it's fixable.
Thanks
Click to expand...
Click to collapse
As the device switched off press the Power Button together with the Volume Button down, when the device vibrates, release the Power button and only keep the volume down button until the device starts up to the start screen appear.
ArthurC1 said:
As the device switched off press the Power Button together with the Volume Button down, when the device vibrates, release the Power button and only keep the volume down button until the device starts up to the start screen appear.
Click to expand...
Click to collapse
Hey sorry for the late reply... I did try that. I can't even force a reboot when it's stuck.
Sent from my SM-G930W8 using XDA Labs
Dave O said:
Hey guys my wife's S7 edge (SM-G935W8, Canadian variant) started rebooting and boot looping for a few days until it suddenly rebooted and stayed on with a black screen and the notification LED stayed blue until the battery died. Even holding home, power and volume down didn't do anything...
The phone was never rooted and completely stock. I just tried reinstalling stock firmware with Odin and everything went well as I got a pass but it still won't boot and gets stuck with black screen and blue LED.
Does this sound like a dead phone? I can't get into stock recovery, only download mode once the battery dies.
Just wondering if it's fixable.
Thanks
Click to expand...
Click to collapse
You can enter download mode right ?
why don't you try installing TWRP recovery with ODIN
Go to TWRP website... and find your device
download .img.tar file
open odin and insert this file in AP tab and in the option tab (disable "auto reboot" )
( plug your phone via usb to your PC.)
on the log it will show (added)
hit start
once installed...press and hold vol down + home +power key (while it restarts) press and hold vol up + home+power key
You will now enter TWRP Recovery...swipe to allow modifications
wipe - > advanced wipe -> except sd card...select everything and wipe them (all your data will be gone)
now install any custom rom from this site..
Heroyt said:
You can enter download mode right ?
why don't you try installing TWRP recovery with ODIN
Go to TWRP website... and find your device
download .img.tar file
open odin and insert this file in AP tab and in the option tab (disable "auto reboot" )
( plug your phone via usb to your PC.)
on the log it will show (added)
hit start
once installed...press and hold vol down + home +power key (while it restarts) press and hold vol up + home+power key
You will now enter TWRP Recovery...swipe to allow modifications
wipe - > advanced wipe -> except sd card...select everything and wipe them (all your data will be gone)
now install any custom rom from this site..
Click to expand...
Click to collapse
I didn't try TWRP but I did try stock firmware from Samsung and Odin, said it passed but I couldn't boot the phone... Doesn't OEM unlock have to be checked in order to install TWRP tho? This phone was completely stock and never rooted.
Sent from my SM-G930W8 using XDA Labs
Dave O said:
I didn't try TWRP but I did try stock firmware from Samsung and Odin, said it passed but I couldn't boot the phone... Doesn't OEM unlock have to be checked in order to install TWRP tho? This phone was completely stock and never rooted.
Sent from my SM-G930W8 using XDA Labs
Click to expand...
Click to collapse
yes i know but have you tried it ? i thought advanced wipe might help as it will remove everything.
My S7 edge is also having similar issue. It just died 4 days ago at 5 percent battery and red LED kept blinking. I tried to hard reboot using Power + Vol Down, it didn't work. I couldn't get into the Download mode either. It doesn't charge when connected to the charger, not detected on any computer as well. Any thoughts?
ilikered said:
My S7 edge is also having similar issue. It just died 4 days ago at 5 percent battery and red LED kept blinking. I tried to hard reboot using Power + Vol Down, it didn't work. I couldn't get into the Download mode either. It doesn't charge when connected to the charger, not detected on any computer as well. Any thoughts?
Click to expand...
Click to collapse
I don't know but the more I Google it the more I see people saying it's a bad motherboard...
Sent from my SM-G930W8 using XDA Labs
Dave O said:
I don't know but the more I Google it the more I see people saying it's a bad motherboard...
Sent from my SM-G930W8 using XDA Labs
Click to expand...
Click to collapse
I plugged it in last night, after the battery was completely drained. It's been a week since the issue.
It was fine till this morning. I inserted the SIM cards and then connected to the laptop. I thought I would backup the data using smart switch before doing a factory reset. The backup went fine till 75% and then boom again turned off. This time there's a lot of battery left, and I might have to wait 4-5 days before it can be drained completely. But I'm now hopeful that it'll eventually turn on and when it does I'll immediately do a factory reset before doing anything else. I'm suspecting that a rogue app might be causing it. This time it might have happened while that app is being backed up. The LED is constant Red this time indicating the state it was connected to the laptop at the time of incident.
It turned on again last night when I connected the charger. It was showing the charging symbol. After 5-6 minutes of charge I tried to hold Vol - + Power buttons briefly to reset the device and it went off again. It's lying like a brick currently.
No sign of life again!
Hi,
I have a new a20e (a202f) out of the box.
I followed another guide to root and install twrp which turns out was wrong. I unlocked the bootloader just fine.
I have no backup, no personal boot.img or anything.
Essentially I am stuck in download mode and restarting takes me straight back to download mode.
Recovery: Error validating footer.
SW REV. CHECK FAIL (BOOTLOADER) DEVICE"
Cheers guys
What guide did you follow? You have to download your stock fw from sites like sammobile then from there you can have the boot.img and etc. Have you tried flashing stock fw using odin?
Note: Usually you flash vbmeta for footer error when you flash twrp.
Deluriane said:
What guide did you follow? Have you tried flashing stock fw using odin?
Note: Usually you flash vbmeta for footer error when you flash twrp.
Click to expand...
Click to collapse
It was a guide on 'unofficialtwrp.com' - I can't link things here yet.
I have since tar'ed an unpatched twrp (TWRP-3.3.1.0_A20_by_Agrim720.img) + vbmeta.img + boot.img (from https://forum.xda-developers.com/galaxy-a20/help/boo-img-a205fxxu2asfb-t4008739), then I flashed through AP on Odin and now I think it boots past the download mode but instead it now has fuzzy dark red screen with nothing legible.
Oh bugger, I've been a class A plum.
Can I get out of this horrible mess?
craigywaigy said:
It was a guide on 'unofficialtwrp.com' - I can't link things here yet.
I have since tar'ed an unpatched twrp (TWRP-3.3.1.0_A20_by_Agrim720.img) + vbmeta.img + boot.img (from https://forum.xda-developers.com/galaxy-a20/help/boo-img-a205fxxu2asfb-t4008739), then I flashed through AP on Odin and now I think it boots past the download mode but instead it now has fuzzy dark red screen with nothing legible.
Oh bugger, I've been a class A plum.
Can I get out of this horrible mess?
Click to expand...
Click to collapse
Well you have to use your own boot.img from your fw, not all of use the same fw that's why, some are still on u2, u3 and u4. Maybe the boot.img you got isnt the same as your fw.
Well you can start from scratch and reflash your stock fw in odin.
https://www.sammobile.com/firmwares/
Deluriane said:
Well you have to use your own boot.img from your fw, not all of use the same fw that's why, some are still on u2, u3 and u4. Maybe the boot.img you got isnt the same as your fw.
Well you can start from scratch and reflash your stock fw in odin.
Click to expand...
Click to collapse
Yep, but now I can not get back to download mode. Any pointers?
craigywaigy said:
Yep, but now I can not get back to download mode. Any pointers?
Click to expand...
Click to collapse
Try holding volume - and power and your phone will turn off, as soon as it turns off press volume + & - and plug your usb cable that is connected to a computer.
No luck with that. It displays the message about running custom os etc and to press power to continue. So I press it and it boots to the messed up red/pink/black display.
craigywaigy said:
No luck with that. It displays the message about running custom os etc and to press power to continue. So I press it and it boots to the messed up red/pink/black display.
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Do you mean like the one attached? If yes you havent booted to download mode.
Try booting to recovery by holding volume + and power while you turn on the phone.
There is a option there to boot to download mode.
Deluriane said:
Do you mean like the one attached? If yes you havent booted to download mode.
Try booting to recovery by holding volume + and power while you turn on the phone.
There is a option there to boot to download mode.
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Yes that screen. I've tried your suggestion with volume + but that also ends up with messed up screen
Yes so currently I'm unable to get to recovery (not sure it even flashed properly), unable to get to download mode, or to get the device recognised in odin.
I'm unable to power off. The screen is blank and when I press power it flickers shortly with some black/white/red pink colours around the edges, but the screen quickly turns blank.
From this position I can only restart by holding volume - and power.
This boots to the samsung logo and then the 'bootloader unlocked' warning. No amount of button configs have proved successful so far, and then I end up back at the blank screen.
I'm happy to start from scratch. I have downloaded the stock firmware but I'm simply unable to proceed.
Aslo the device is not recognised in windows at any point.
Thanks guys
craigywaigy said:
Yes so currently I'm unable to get to recovery (not sure it even flashed properly), unable to get to download mode, or to get the device recognised in odin.
I'm unable to power off. The screen is blank and when I press power it flickers shortly with some black/white/red pink colours around the edges, but the screen quickly turns blank.
From this position I can only restart by holding volume - and power.
This boots to the samsung logo and then the 'bootloader unlocked' warning. No amount of button configs have proved successful so far, and then I end up back at the blank screen.
I'm happy to start from scratch. I have downloaded the stock firmware but I'm simply unable to proceed.
Aslo the device is not recognised in windows at any point.
Thanks guys
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Click to collapse
Are you sure you pressed and hold volume +&- and plugging cable before the samsung logo pops up? You have to do it quickly right after the device turns off. You shoudn't see the bootloader warning if you done this quickly and correctly.
craigywaigy said:
Yes so currently I'm unable to get to recovery (not sure it even flashed properly), unable to get to download mode, or to get the device recognised in odin.
I'm unable to power off. The screen is blank and when I press power it flickers shortly with some black/white/red pink colours around the edges, but the screen quickly turns blank.
From this position I can only restart by holding volume - and power.
This boots to the samsung logo and then the 'bootloader unlocked' warning. No amount of button configs have proved successful so far, and then I end up back at the blank screen.
I'm happy to start from scratch. I have downloaded the stock firmware but I'm simply unable to proceed.
Aslo the device is not recognised in windows at any point.
Thanks guys
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Click to collapse
Hello -
Please trust me when I tell you that it can be fixed. I had the EXACT same problem and drove me crazy for 24 hours. You can deffinetly fix your phone once you get to download mode.
I had the same issue where I could not turn the phone OFF it just looped back and I pushed buttons for hours to no avail... Then some one told me it WILL WORK, it is just the timing of
the button pushing, AND the USB cable plug in. Sure enough he was right. It took me alot of tries and I even took my phone apart and un plugged the battery so I could controll the power
ON / OFF better and time the button's easier. Here is what I did ...
unplug battery so phone was 100% OFF.
Plug in battery ( phone is still OFF )
Hold Vol - then Hold Power and Vol -
As soon as the power started IMEDITALY PLUG IN USB ( have USB READY to be plugged in FAST )
DONT let go of buttons ... screen will flash quickly and then Imediatly let go of power keep holding Vol -
IF you timed this right, IT WILL proced to download mode. If not, then start over again from power OFF ( step 01 )
It took me 3 tries to get it ( after 50+ tries before ) lol
Now I am not sure about the battery unplugging ... maybe you dont need to, but it mad it work for me as I could control the power ON part of this now.
Getting to your battery is not very hard and there is a you tube video on how to do it... if you need help just PM ME.
Good luck friend.
When this happened to me all I did was hold volume up and volume down. Kept cord connected to computer. Connected to device during the bootloop and boom within seconds I was in download mode. It catches it once screen goes off in between the bootloop.
Sent from my SM-N950U using Tapatalk
Thanks you guys. In the end the battery died and then I could power up whilst holding vol+, straight to recovery and then I could flash stock rom.
Much appreciation for your help guys, it got me out of a pinch - it is my mother-in-law's new phone!
craigywaigy said:
Hi,
I have a new a20e (a202f) out of the box.
I followed another guide to root and install twrp which turns out was wrong. I unlocked the bootloader just fine.
I have no backup, no personal boot.img or anything.
Essentially I am stuck in download mode and restarting takes me straight back to download mode.
Recovery: Error validating footer.
SW REV. CHECK FAIL (BOOTLOADER) DEVICE"
Cheers guys
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can you help me i have the same problem idk how to fix it help