This is a rooted Chinese tablet running Android 4.2.2, and I would like to have it boot up automatically when plugged in. Currently, if the tablet is powered off by holding down the power button, it will turn on automatically when plugged into a USB charger. If the device is shut down using the power menu or the reboot -p command, however, it will not turn on when plugged in. It will only display the charging symbol. Running the "adb shell reboot bootloader" command reboots to a black screen. Any ideas?
HI
anastasty said:
This is a rooted Chinese tablet running Android 4.2.2, and I would like to have it boot up automatically when plugged in. Currently, if the tablet is powered off by holding down the power button, it will turn on automatically when plugged into a USB charger. If the device is shut down using the power menu or the reboot -p command, however, it will not turn on when plugged in. It will only display the charging symbol. Running the "adb shell reboot bootloader" command reboots to a black screen. Any ideas?
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Hi
I cannot help You, but please , can You say, how do You upgrade this tablet firmware to 4.2.2 , when manufacturer website only 4.1 version, and how do You rooted this device.
Thanks in advance
Related
I just got my Springboard, but I am having problem. When I turn it on, it goes through the logo screens and into the PIN pad. I enter the code, but after the home screen appears, the tablet turns off immediately and starts a loop of booting and turning off. If I do not enter PIN, the tablet turns off and starts rebooting loop.
When I press Power and Volume Up, the following screen appears: Enter into fastboot mode. You can press POWER key for more than 10 seconds to reboot device. It sticks on this screen until power runs out.
When I plug it through USB to computer, nothing gets recognized. I a running Win 7 Pro 64 bit. When I tried to turn it on plugged in through USB it installed Hi Suite and appeared for a while as CD drive until it powered off again.
Any ideas how to make it work?
try to re-flashing ROM. put "dload" folder in microSD then turn on your tablet. but to do this your battery must at least 50%
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
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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)
Basically after using adb reboot bootloader my tablet rebooted and got stuck on the logo. I have tried to
access the recovery mode by turning it on, while holding the up and down volume buttons, but nothing happens.
Moreoever, whenever I connect it to my computer, windows recognise it as USB Developer.
Any ideas on what to do?
Ok, it seems that if you leave it to fully discharge its battery, the bootloader command gets reset and its loads just fine.
Gonna mark this as solved
Hi all,
I have just recently rooted my 306SH, the rooting process was fine. The problem started when I flashed an incompatible twrp image. Now I can't boot into anything it seems, no recovery, no fastboot and the power button will show only the logo screen. If connected to a power source the red led light will stay on even if unplugged. The device can be completely shut down and the red light off if I hold the down+volume and power down for few seconds.
I can connect it to my computer via usb by holding up+volume and power (green led light) . I installed google usb driver onto the android device and it stays connected for about 30 seconds to 1 minute. I tried using command prompt and SDK by typing "adb reboot recovery" but get an error message "error: device '(null)' not found.
Things I have installed on my computer:
(ADB, fast boot and drivers) https://forum.xda-developers.com/showthread.php?p=48915118#post48915118
SDK Platform-tools
306SH:
Google USB driver
Is there anything I can do from my computer? I was thinking maybe I can flash in an image to replace it. And also my sim card pops out and can't be set back in, is this due to the incorrect flashing?
Any help or input is greatly appreciated, I've been working on this for a while and is getting no where.
I am using this phone for special purposes. I need it to power on, boot, when the power cord is connected.
Normally, you do this by going to fastboot and type in fastboot oem off-mode-charge 0
It accepts this command, returns OK, but it will not power on when power is connected. It just boots to the battery indicator screen.
Any ideas? I would rather not root this or anything, I have it working every other way I need it to.
have you find any solution ? because i have the same issue