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Lifetab p9516 bricked bootloader
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TOPIC: Lifetab p9516 bricked bootloader

Lifetab p9516 bricked bootloader 4 years, 9 months ago #2540

  • fr0scher
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Hey Guys,

I had the same problem with my Tablet which stuck on the Medion bootscreen. I tried several things to get back to Stock ROM via nvflash, CWM and even tried my best with adb.

when I connect the Tab in APX mode and try to use nvflash for flashing CWM in SOS partition, there is an Error downloading the bootloader and on the screen of the tab appears a message that there is no bootloader.

Is there a possibility to reflash a bootloader? I have the 32 GB TAB with 3G.

Thanks in advance.

Re: Lifetab p9516 bricked bootloader 4 years, 8 months ago #2541

  • YLG80
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Hello,
I'm currently in Laos, so I cannot search in my archives, right now.

You should check the posts of Ameisemtaetowierer.
It's a long while since I've played with that Medion tab. Still working, though.
If I remember well, he helped someone with a similar problem.
He has also published a toolset to recover tablets. The TS can be downloaded from avi-plus. Find the post.

Have also a look on the German site android-hilfe.de.
Not really sure that the bootloader is corrupted if you still can see the Medion logo.

Yves
Last Edit: 3 years, 6 months ago by YLG80.

Re: Lifetab p9516 bricked bootloader 3 years, 6 months ago #2684

  • starbuck
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Hello,

my Lifetab p9516 is not booting/loading Android anymore.

When I power on the tablet I see the Medion Logo. After a few seconds the tablet reboots and and I see the logo again.

I have booted into recovery mode with the rescue-cd wiped the /system, /data and /cache partition.

After that I have installed ICS MD_LIFETAB_P9516_21_21_120604_M_DES.zip via recovery from sd-card again. After the installation BCT+EBT gets updated.

Next the tablet reboots again and the Medion Logo is shown long time and it is doing nothing. After 10-15 minutes I have switched the tablet off.

Powering it on again the Medion logo is shown again and than it is stuck. I have activated APX-mode to boot into recovery. Then I have installed Jelly Bean? (medion-lt-p9516-cm10-v61-signed.zip/145MB?)

It gets successfully intalled from sd-card. After the reboot I got the bootloop again.

Is the bootloader bricked? Or what's the problem here? How can I diagnose the error any further? Any ideas?

best regards
starbuck

Re: Lifetab p9516 bricked bootloader 3 years, 6 months ago #2688

  • YLG80
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Hello,
Can you get connected to the tablet via adb ?
If yes, you should connect to the system and fdisk -l to see the partitions and their status.
If you can adb the tablet you could make extensive test of the flash.
Regards.
Yves

Re: Lifetab p9516 bricked bootloader 3 years, 6 months ago #2692

  • starbuck
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Yes, adb is working.

/sbin fdisk -l

did not show the partition table.

Strange nothing is shown.

It's fdisk from busybox 1.20.2-jb

Partition Table command 13) from rescue CD
partition.png


What else can I do?

regards
starbuck

Re: Lifetab p9516 bricked bootloader 3 years, 6 months ago #2695

  • YLG80
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Have you tried what's described in that topic?
www.avi-plus.com/repair-tips-forum/misce...516-tablet.html#1473
This happened a long while ago, but if I remember well, Mickey (Ameisentaetowierer) had a similar problem.
See also that topic : www.android-hilfe.de/forum/medion-lifeta....358069-page-15.html
Yves

Re: Lifetab p9516 bricked bootloader 3 years, 6 months ago #2696

  • starbuck
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What should I check?

Could the flash memory be defect? How could I check the memory?

Any hints?

Thank you.

starbuck

Re: Lifetab p9516 bricked bootloader 3 years, 6 months ago #2697

  • YLG80
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Yes the flash could be damaged.

As far as I remember, the only way to test the flash is to perform a read with the nvflash "rawdeviceread" option.
And also use the rawdevicewrite.
Like this
nvflash --rawdeviceread S N <filename> --bl <bootloader> --go

Parameters
S - start block for reading (4096k blocks)
N - number of blocks to read
filename - output file

Have a look a that thread :
forum.xda-developers.com/showthread.php?t=2575775
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