I screw up my Medion lifetab e7332 :-) - Forum

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I screw up my Medion lifetab e7332 :-)

Did try to flash CrewRKTablets_Odys_Iron_LP_5.0_v1.2 with no succes.

snipsnap

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2015/09/10

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2015/09/11 - 19:07

Could need some help with my device.
I am the proud owner of a medion lifetab e7332 🙂
Was trying to flash CrewRKTablets_Odys_Iron_LP_5.0_v1.2 on it.
Which is probably a dumb thing to do, so things went wrong
and the device will not boot, blackscreen, my bad.

I did make a backup with cwm based recovery, so i thought that
somehow i would get it up and running again, but i can't.

I have no stockrom or any other kind of backup from this device.

I can go in cwm based recovery v6.0.3.1 by oma, but with errors.
and if i try to restore the backup it gives a error while restoring the system.
It does mount the external sdcard.

-----------------------------------------------------------------------------
I get errors like these::.
can't mount backup path
can't mount sdcard
W:failed to mount /dev/block/mtd/by-name/cache (No such file or directory)
E:Can't mount /cache/recovery/log
E:Can't open /cache/recovery/log
W:failed to mount /dev/block/mtd/by-name/cache (No such file or directory)
E:Can't mount /cache/recovery/last_log
E:Can't open /cache/recovery/last_log
W:Can't unlink /cache/recovery/command
I:can't format unknown volume: /emmc
-----------------------------------------------------------------------------

for flashing 1 seem to need at least 7 things and i can only find
a few of them in the cwm backup i make.
I do not have the original loader.bin file, no parameter file, no misc.img and no system.img.

I think that i have a problem with the nand.. but i do not really understand what this is.
It seems some kind of way of how my device uses the flash memory?
Now original ik had 16 gb of flash and a 3.0.36+ kernel and maybe me trying to flash made some kind of change in this?
Can i undo this?
Is there another way to solve my problem?
any other thoughts on the problems i face?

I don mind reading and trying.. and i did.. but am a bit stuck on this one.

thank you for your time.

snipsnap

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2015/09/15 - 23:45

i put this rom on my device: Oma_RK31_Chuwi_V17HD_KK_4.4.2_v3.5_gen2 loader.7z with rkflashtool
made some change in the parameter file to size@offset
flashed the rom again
let the recovery from the rom do the formatting
flashed the cwm from the rom

and now i was able to restore the cwm backup.

so am good..back on kitkat 4.4.4 and going too change it again 🙂

found out that lots of the: Oma_RK31_XXXX stuff that you can find here on the forum
will work in someway on this device.

also lollipop 5 rom did work on some jb kernel but with ui and bluetooth crash.

cheers

Oma7144

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2015/09/16 - 05:10

Fine. Can you pls provide the e7332 kernel for the archive?

The Iron builds are for high resolution tabs. To make it run on a 7" device one need to install the 160dpi fix.

You can also try this build: http://crewrktablets.arctablet.com/?p=5577

- Oma -

Per aspera ad astra, we rock the Tablets !

If you like our firmwares, please consider making a donation to support our work.
Thank you!

snipsnap

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2015/09/16 - 11:39

thanks for the reply, will upload the kernel, try fix and rom.

CM12 says again no se linux kernel(i do not understand this.. i need reading). I think my device has got a se linux kernel.

Kit kat 4.4.4 is able of changing the way ART works.. so i do not understand why i have to use a jb kernel.. Then all i get is a lollipop feeling?

Not that is really matters.. just wanna play and learn.

best regards

Oma7144

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2015/09/16 - 17:55

Ok, that's your problem. Tab has gen2 loader and a selinux kernel. Flashing gen1 loader stuff into it will end up into nowhere or a bricked tab.

For the moment we can try to find a suitable KK custom build. Can I have a dmesg log to see the hardware?

- Oma -

Per aspera ad astra, we rock the Tablets !

If you like our firmwares, please consider making a donation to support our work.
Thank you!

snipsnap

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2015/09/17 - 00:18

.. i found the server down for a while.. but it's back up again 🙂

snipsnap

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2015/09/17 - 11:37

I did have two problems.

First one was that i did not find any good rom.
for my device whitout me being able to compile a kernel myself
or to make some kind of hardware patch. I thougt i wanna learn
that and in the meantime i will put back the backup.

So i tried to get back in time and reinstall kitkat 4.4.4
from the CWM backup that i make.
But it gives me errors.. The errors disapear when i edit the size and offset in the parameter file.
But still when i start my device the first time .. I loose my user settings.
This is not a big thing.. but somethings did not backup or restore quit right because cwm should bring me back exactly where i left it.

I am wondering what this is .. and how i could change this.
So i was thinking that maybe i need the original parameter settings.. But then again i have no parameter file.
So maybe i get this info from somewhere else. And i think i read on the net that /dev/block/dw_mmc/by-name
should be the place to get this. But i cant find this info nowhere in the backup.

Or do i have to learn to get the recovery.fstab from the boot.img and i find my answer there?

or Is this problem related to the bootloader.bin file, or bootloader version? so maybe when i use the exact version of the bootloader file
the backup wil restore the way it was intended?

-----------thank you for your time------------

Oma7144

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2015/09/17 - 17:09

This build should work for you as a basis: http://crewrktablets.arctablet.com/?p=3175

Just change the kernel before flash: http://crewrktablets.arctablet.com/?wpfb_dl=2657

In CWM you can restore your firmware.