Hi, I have downgraded my Kindle Fire HD 10 (2017) FireOS 5.6.4 to Fire OS 5.3.6.8 and after downgrade it does't turn on. Recovery mode does't turn on either, as if tablet is dead, but when i use USB cable to connect tablet with PC, it recognizes (sound for device plug in and after 2 sec. sound for device plug out) and what can I do? Can someone help me? (((
P.S. I tried click volume down and power buttons together + volume up and power... but nothing.... tried charge device but led does't work and device does't start
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I normally enter to recovery mode by pressing Power x4 then Vol +, but I accidentally pressed Vol- instead of Vol+ and it went black, I powered off and turned it on again, still black screen, not even Toshiba screen.
Removed the battery and inserted again, same issue, however my computer does detect it when I power the tablet on while the usb cable is connected, but asks drivers for APX.
Can someone help me with this? Is it recoverable?
Thank you.
Working
Forget it, puppet13th user helped me with his thread: http://forum.xda-developers.com/showthread.php?t=1458876
Thanks just the same.
Hi all. I´ve got this tablet: Arnova 10 G1 - rooted. I have a problem with booting. When it starts, it keeps rebooting on boot screen. I can´t go into the recovery mode . I've got these buttons: Volume Up ´, Volume Down, reset button and power button. I have 2 USB ports. One large and one small USB port (microUSB).When I connect to PC, It doesn t recognize it. ´ I had connected the two USB ports.I do not know what further. Thank you very much for your help.
When i go to Bootloader (Hold Physical Power + Vol Up) this will show up an Empty Battery Logo
When i go to Recovery (Hold Physical Power + Vol Down) NOTHING will show up on the screen not even a vibrate from the phone
When i just turn on ASUS Zenfone 5 it will show the White USB Logo then it will Bootloop
When i plug ASUS Zenfone 5 to Wall Power Outlet for charging it LED Indicator will not light up
When you turn on ASUS Zenfone 5 while its plugged to the PC the USB Logo is stucked on the screen and it toggles from White to Red Colored Buffer by itself sometimes
When i plug it to my PC while its powered on "Cloverview" will be recognized by my PC's devmgmt.msc but phone screen will shut on and off by itself and "Cloverview" from devmgmt.msc will appear and dissapear the same time that the screen goes on and off
When i plug it to my PC while having an Empty Battery Logo (Bootloader) "Cloverview" will not show up from devmgmt.msc
I need help Badly Please help me :crying: :crying: :crying: :crying: :crying:
jinconstantine said:
When i go to Bootloader (Hold Physical Power + Vol Up) this will show up an Empty Battery Logo
When i go to Recovery (Hold Physical Power + Vol Down) NOTHING will show up on the screen not even a vibrate from the phone
When i just turn on ASUS Zenfone 5 it will show the White USB Logo then it will Bootloop
When i plug ASUS Zenfone 5 to Wall Power Outlet for charging it LED Indicator will not light up
When you turn on ASUS Zenfone 5 while its plugged to the PC the USB Logo is stucked on the screen and it toggles from White to Red Colored Buffer by itself sometimes
When i plug it to my PC while its powered on "Cloverview" will be recognized by my PC's devmgmt.msc but phone screen will shut on and off by itself and "Cloverview" from devmgmt.msc will appear and dissapear the same time that the screen goes on and off
When i plug it to my PC while having an Empty Battery Logo (Bootloader) "Cloverview" will not show up from devmgmt.msc
I need help Badly Please help me :crying: :crying: :crying: :crying: :crying:
Click to expand...
Click to collapse
Sounds like you've bricked it good. RMA it and ASUS should take care of it.
same problem here.
it happens when i tried to downgrade firmware using this guide.
http://www.asus-zenfone.com/2014/09/how-to-downgrade-from-442-kitkat-to-43-Jellybean-Zenfone.html
but i successfully downgraded it. and my phone can boot on home screen only when connected to a charger but it doesn't charging at all..
my only problem is when i try to press power and volume up. an empty battery appears with a question mark at the middle.
and my phone doesn't charge anymore.
did you try to flash stock firmare using adb?
hi there! just want to ask if zenfone 5 wont turn on, not charging, and it is not detected by pc with necessary drivers for the phone installed mean "unrepairable"?
Hello XDA Community,
Sorry I didn't know where to post this...
Two weeks ago I purchased a Lenovo S8-50LC Tablet. It was working fine until last night, I was watching movies on Youtube and chatting with some friends. Then I went to bed and there was still around 50% charge in the battery.
When I woke up, I tired to wake up the device but it didn't respond. I thought it was stuck or something, so I tired to hold the power button for 20 seconds to do a hard reset but still didn't work. After that I plugged it in to a power source with the compatible charger that came with it and the screen light up with no data on it. I tried to power it on then and it showed the Lenovo logo and in a very tiny font underneath the logo it said "Boot Fail, Efi hard drive".
Then it would take me to a screen which says:
"EFI Shell version 2.31 [1.0]
Current running mode 1.1.2
map: Cannot find required map name.
Press ESC in 5 seconds to skip startup.nsh, any other key to continue.
Shell>_"
http://imageshack.com/a/img907/6979/reZJPf.jpg
and that's it!
I don't understand why this screen appears. I mean the tablet was working properly over the night and it had no issues whatsoever, but now it doesn't boot!
Then I tried to power it off and press Volume UP + Volume DOWN + Power Button, it showed a black screen with only one line: "FastBoot Starting...Can't get eMMC Info, revert to default value!"
http://imageshack.com/a/img661/1158/bRg9jj.jpg
That's all what I got...
PS:
1- The tablet does all that only when it's plugged to a power source, but when it's not plugged, it doesn't show anything.
2- When I plug it into the pc via USB, the pc doesn't recognize it.
3- I tried to boot into fastboot mode or recovery mode but it doesn't work either.
Please help me fix my tablet and I hope it's going to be soon. Thank you all in advance!
UPDATE:
1- I left it on the charger for maybe 2 hours and now it's turning on without being plugged in to a power source.
2- When I press Volume UP + Volume DOWN + Power Button, it shows the previous mentioned phrase, but now when I connect it to the pc via USB, windows recognizes it as Lenovo Composite ADB Interface under Android Phone
http://imageshack.com/a/img903/3907/oQdSAB.png
3- Tried to perform some fastboot commands like flash, format and erase, it always fails with the error:
Failed (remote: unknown command)
UPDATE2:
1- When executing ADB commands like adb devices it says "no devices found"
anyone?
Hello. A friend of mine has the same problem. He dropped the device and the screen cracked. After a reboot the tablet is on the same situation. I plugged a keyboard via otg , it stops the countdown in the EFI SHELL, but i can not type anything. I think is an eMMC related problem.
I guess the eMMC is totally fried or something. But, I mean, I didn't leave it on the charger all night or anything, why would it do such a thing!
any solutions or suggestions??
reflash the stock firmware: http://forum.xda-developers.com/showpost.php?p=58934356&postcount=90
mrhamed said:
reflash the stock firmware: http://forum.xda-developers.com/showpost.php?p=58934356&postcount=90
Click to expand...
Click to collapse
Thank you for your reply but it doesn't work .. as I mentioned earlier I don't have a "download mode" because any key combination I try to use just sends me to the shell window .. anymore suggestions would be appreciated!
-unplug usb cable
-turn off
-hold (volum+) and (volume -) towice
-press power button
It should go to fastboot quickly (a black screen with a little text)
I had bricked my Sony z ultra by accidently
deleting OS through TWRP. When phone is
connected to wall power socket led glows red
and Sony logo appears. Logo will go off when
power+vol up is pressed for few seconds but
Will appear within few seconds. When connected
to Computer phones led will bink red and there
Will be continuous connect disconnect sound
From computer speaker. Computer sees the phone
Just an usb input device or unrecognised.
Flashmode (power+vol down) also fails in
Flash tool application in which message says
Usb debbug is disabled and I can't enable it in
Bricked phone. Is there any chance to revive my
Phone?
Ravi Chandra P said:
I had bricked my Sony z ultra by accidently
deleting OS through TWRP. When phone is
connected to wall power socket led glows red
and Sony logo appears. Logo will go off when
power+vol up is pressed for few seconds but
Will appear within few seconds. When connected
to Computer phones led will bink red and there
Will be continuous connect disconnect sound
From computer speaker. Computer sees the phone
Just an usb input device or unrecognised.
Flashmode (power+vol down) also fails in
Flash tool application in which message says
Usb debbug is disabled and I can't enable it in
Bricked phone. Is there any chance to revive my
Phone?
Click to expand...
Click to collapse
You can reflash it with flashtool by holding little white dot right next to sd card for about a minute or two then press volume down and after that release white dot and connect cable to the phone while still holding vol down and the phone will be resurected.
Believe me I did it after a few months of bricking my device but still was left in my draw.
Cheers