Hi,
I'm struggling to get my Lenovo Tab 2 A8-50F into the recovery menu. I've found various sets of instructions that fairly consistently say to hold the volume up key and power, then let go when the Lenovo branding appears.
I've tried that a few times but it doesn't get any further; the branding remains on the screen forever (well, until I hold the power key long enough to reboot it).
I've also tried holding them a bit longer, but it just switches off, buzzes, and comes back to the Lenovo branding.
The volume down and power takes you to a menu in Chinese that's apparently a factory test menu.
I found someone else on a Lenovo forum who appeared to have the same issue, but there was no response to their question.
If anyone knows how to solve this or has any other suggestions, I'd really appreciate hearing from you.
Hope someone can help.
Thanks
John
Just in case someone else comes upon this thread, I never did get it to work using the normal hardware buttons. What I had to do was enabled USB debugging, install adb etc onto my PC, connect the tablet to the PC over USB, run: adb devices, then: adb reboot recovery. When I did this a little Android guy came up lying on his back and saying "No command". At that point, press power and volume-up and the recovery menu appears.
Hope this helps.
John
Related
Hi everyone. First time poster here. I'm having problems with my Samsung Apollo (i5801). I was at first going to root my phone, but before even getting to there, I was trying to access recovery mode so that I could fix a USB error (USB would not be detected when plugging into PC, only charged). I don't know what ended up happening, but now I am stuck in a rut.
Trying to hold Volume Up + Down, Home, and Powering on leads to the exclamation mark triangle android screen. Pushing the home button after that just leads to a reboot.
Holding Volume Down + Home and powering on leads to a blue "DOWNLOADING DO NOT TURN OFF" screen which I get stuck on.
Holding Volume Up + Home leads to a "Forced upload by key pressing" screen.
My phone still cannot access any boot menu and still cannot connect by USB to my PC.
I have not rooted anything and the firmware was on 2.1 Eclair before this whole thing happened.
Any ideas or suggestions would be grateful. Thank you!
Well seems like you can access Download mode just fine, so how about flashing it?
2 things here
you cant actualy access a boot menu on a stock apollo, you need to flash a firmware to it first
and the reason your pc cant connect to the handset is you most likely dont have the samsung drivers installed
http://forum.xda-developers.com/showthread.php?t=778880
this thread should help plenty same handset, just called something else
hope this helps
I have new galaxy tab 10.1 which I am planning to root, however I cannot get unit to enter download mode. I have tried unsuccessfully at least 20 times using the recommended method of turning the unit completely off then holding the vol-/power buttons. I press the vol- slightly ahead of the power button and hold. All I get is the samsung splash looping over and over with no download or recovery menu icons popping up after the samsung splash. Once I let go, the tab will go into android recovery mode with the option to reboot which takes me to where I started. I have followed all of the tutorials to the tee. Is there another way to get to download mode? Should I take it back if this indicates a more serious problem.
I have also done a factory wipe/reset to no avail. Will vol+ / power do anything?
thanks for your interest I would appreciate any help.
emonjato said:
I have new galaxy tab 10.1 which I am planning to root, however I cannot get unit to enter download mode. I have tried unsuccessfully at least 20 times using the recommended method of turning the unit completely off then holding the vol-/power buttons. I press the vol- slightly ahead of the power button and hold. All I get is the samsung splash looping over and over with no download or recovery menu icons popping up after the samsung splash. Once I let go, the tab will go into android recovery mode with the option to reboot which takes me to where I started. I have followed all of the tutorials to the tee. Is there another way to get to download mode? Should I take it back if this indicates a more serious problem.
I have also done a factory wipe/reset to no avail. Will vol+ / power do anything?
thanks for your interest I would appreciate any help.
Click to expand...
Click to collapse
I seem to recall that at least one variant swapped the button around. In any case, it can't hurt to try volume up.
Here's what you do - first, shut the device off by holding power down and waiting for the confirmation.
Then, when it's off, hold the volume down button (to the left side, next to the power button.) Holding that down, press and hold the power button. When you see it light up, release the power button but continue to hold volume down until you see the recovery/download icons.
If doing that doesn't work, try volume up and power. Good luck!
Ill try your suggestions. thank you
emonjato said:
Ill try your suggestions. thank you
Click to expand...
Click to collapse
I'm having a similar problem. I have a galaxy tab 10.1 wifi that I rooted immediately when I got it. I havn't used it in about 4-5 months. I've already done all the odin and download stuff, but now i want to update my cwm and install a JB rom (I'm currently using aokp). I'm having a funny problem with it now -- Its difficult to turn on and impossible to get into download mode.
In order to turn on my tab, I have to hold down the power, connect the charging cable and get the download screen to turn on, then hold down the power again, wait for the screen to turn off, unplug the power and hold the power button until hopefully it turns on again. And this doesn't always work, sometimes I have to do it a few times. But whenever i've tried do the same thing that gets the tab working normally -- only holding the down volume as well as the power, Nothing happens.
Now once its on and working, things work great, but turning it on is a pain and its impossible for me to bring up the download or recovery option.
I've also tried to 'reboot to bootloader' and that doesn't work, although i can still 'reboot to recovery'
Any tips?
scndthe2nd said:
I'm having a similar problem. I have a galaxy tab 10.1 wifi that I rooted immediately when I got it. I havn't used it in about 4-5 months. I've already done all the odin and download stuff, but now i want to update my cwm and install a JB rom (I'm currently using aokp). I'm having a funny problem with it now -- Its difficult to turn on and impossible to get into download mode.
In order to turn on my tab, I have to hold down the power, connect the charging cable and get the download screen to turn on, then hold down the power again, wait for the screen to turn off, unplug the power and hold the power button until hopefully it turns on again. And this doesn't always work, sometimes I have to do it a few times. But whenever i've tried do the same thing that gets the tab working normally -- only holding the down volume as well as the power, Nothing happens.
Now once its on and working, things work great, but turning it on is a pain and its impossible for me to bring up the download or recovery option.
I've also tried to 'reboot to bootloader' and that doesn't work, although i can still 'reboot to recovery'
Any tips?
Click to expand...
Click to collapse
I have almost the exact same problem...
Volume up puts me into download mode and i can connect with Kies but it wont do the JB update
Voulume down ... nothing just boots
if i let it try to do the OTA update it will freeze at the boot screen and stay that way till the battery dies.
To get it to work again i have to do almost exactly what was decribe above..
I have no recovery options at all.
also my Tab is "NOT" rooted
scndthe2nd said:
In order to turn on my tab, I have to hold down the power, connect the charging cable and get the download screen to turn on, then hold down the power again, wait for the screen to turn off, unplug the power and hold the power button until hopefully it turns on again. And this doesn't always work, sometimes I have to do it a few times. But whenever i've tried do the same thing that gets the tab working normally -- only holding the down volume as well as the power, Nothing happens.
Now once its on and working, things work great, but turning it on is a pain and its impossible for me to bring up the download or recovery option.
I've also tried to 'reboot to bootloader' and that doesn't work, although i can still 'reboot to recovery'
Any tips?
Click to expand...
Click to collapse
I had a similar problem initially... the screen would just flash the "downloading" message, but the tablet wouldn't mount/connect to my laptop. Here's the solution:
1) launch odin
2) connect usb cable to laptop only
3) power down tablet
4) hold down the power volume down buttons together
5) when you see the downloading message, let go of the power button
6) let go of the volume down button (now just displays "downloading" message, but nothing happens
7) press volume UP
8) you'll get a message about installing custom ROMs and be given the option to do so by pressing volume UP again
9) the tablet mounts and connects to odin
10) from there follow the instructions for flashing recovery via odin (i.e., using PDA button...)
FYI just double check the guides again regarding download and recovery modes. In the thread title you mention Tab 2. This is the forum for the original Tab not the Tab 2. Both devices have different methods and key presses to access the various modes.
Sent from my GT-P7510
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)
Hello guys,
I'm new and i'm not sure if i posted this under the right place but here goes... (let me know if there is a better place to post this to get help with this problem)
Anyone who can help me revive my device will be given $5 Paypal as a token of appreciation.
I own a Onda v989. A Chinese brand tablet that imitates the iPad with some impressive specs for the price.
Long story short, the tablet came preinstalled with some bloatware, I root it, and used Titanium to backup & uninstall some system apps, which eventually cause the tablet to pop up "unfortunately the process com.android.systemui" non-stop (when i click on ok, it will pop up again, not letting me do anything on the device). I tried rebooting, and as soon as the lock screen comes on, the same error keeps popping up, not letting me do anything. I can not go into settings to factory reset or go into Titanium to back up. The device is not set to usb-debug.
I was hoping i could boot into recovery mode and factory reset from there holding power + volume up (i tried power + volume down too) but either combination seems to do anything (it doesn't even boot if i held power & vol + or power & vol - and only seems to boot if the power button is hold by itself). Once i reboot the device, the cycle of "unfortunately, the process com.android.systemui" starts again.
Could anyone help me solve this problem so i can use my tablet again, specifically, if possible, to boot the device into recovery mode using the buttons. If that's not possible, any alternative to restore my device? If you need additional details, please ask away!
Thanks so much!
I really hope my device is not bricked ;/
you can directly boot into recovery through adb "adb reboot recovery" or "adb reboot fastboot" and factory reset the device.
check this out
forum.xda-developers.com/showthread.php?t=2250285
you can turn on USB debug from pc android.stackexchange.com/questions/112040/how-to-enable-usb-debugging-in-android-if-forgotten-pattern-for-screen-unlock then reboot to recovery "adb reboot bootloader" then you can wipe data/factory reset it.
HELP! Blue Wave 8 33GT tablet stuck in recovery mode with "No command" message
I got my Blue Wave 8 33GT (not HD+) tablet completely bricked. First of all, I know this is not really a popular device and some of you might not have a single knowledge about this one, but I hope in any way you might help me get this device working again. Thank you in advance!
Some info about this device:
Bluewave's website: Wave 8
Android OS version: 4.4 KitKat
Device processor: Rockchip-based (RK31)
What just happened? It suddenly reboots while I'm playing and gone into recovery mode with an Android and a "No command." message. Now it won't boot the system anymore whenever I reboot, it always going into this recovery mode.
It has no volume buttons, just a reset, a hard back button and power button. Holding down the power and back button goes into the recovery mode directly. Through normal boot, it flashes the Bluewave logo twice then goes into the recovery. While the reset button immediately turn the device off. There's nothing else I can think of that I can do in this case.
My laptop can recognize it as an ADB Device in recovery mode and I think I may be able to flash it via Rockchip BatchTool, but the instructions I've read states that the device should be up and with a USB debugging enabled which I am not currently able to do in recovery mode. Device is rooted and working totally fine until this happened.
Anyone got into this kind of problem and able to go through it? Please, any help is greatly appreciated.
P.S
Just let me know if there are any additional info I could give you.
What about hard reset.
May be this link help: https://drfone.wondershare.com/reset-android/hard-reset-android-without-volume-buttons.html
AutomaticSearches said:
What about hard reset.
May be this link help: https://drfone.wondershare.com/reset-android/hard-reset-android-without-volume-buttons.html
Click to expand...
Click to collapse
Hey! Thanks for your reply and time.
I tried every combination of either of the two keys but there is no such recovery menu showing up, and I am pretty sure that this device doesn't have a built-in recovery for factory reset.
If only I could go to its download mode stuff to be able to flash the firmware...
Humble Potato II said:
Hey! Thanks for your reply and time.
I tried every combination of either of the two keys but there is no such recovery menu showing up, and I am pretty sure that this device doesn't have a built-in recovery for factory reset.
If only I could go to its download mode stuff to be able to flash the firmware...
Click to expand...
Click to collapse
May be this site help: http://bluewave-global.com/wave_8.php#frame4
"Long press the power button to restart the device. If restarting fails, hard reset the tablet by poking the Reset hole using a pin. " it is from FAQ
maybe this could help.
1. Press the power button to get the option menu for
Power off
Reboot
Silence phone option.
2. on that menu you have to hold down that power off option on your touch screen while also holding down the home push button on the side of your tablet.
3. This brings up a screen to reboot into safe mode..(these are the 3 steps the company does not tell you that is why no one gets it to work.
4. HIt yes for safe mode and then hold down your power and home buttons on side of tablet till the dopo Logo appears.
5. Release both buttons and hit the power button one time and then hold only the home button down till a menu option appears.
6. Use the home button to move down to factory reset and press the power button to select. Once it says complete then use the power button to select reboot.
Problem solved. Hope this will help everyone out.
The only way is to remove the battery, attached again the battery then power it on their is no hard reset on blue wave the go to settings factory reset