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Weird problems with my tablet

Hello! I have some poblems with my chinese tablet Lenco Cooltab 70. Three days ago the tablet discharger. When I charged it and powered it on all files were deleted! So I tried to install my old apps like Opera mobile, Youtube, etc..During the installation I got this error message " AppName could not be installed. Free up some space and try again". My tablet has got empty internal storage!!! ( storage bug?). I tried searching in Google. Every possible option failed! Next error message was during the installation new Custom ROM( Paranoid android)- acording to the instructions. I got this message:
E: signature verification failed
E: installation aborted.
Next thing I did was: update recovery mode to CWM( too TWRP). i receive the installation aborted error again. People on XDA or another forum advise to install goomanager or Lucky Patcher, but how?! I cant install anything! When I try to enter the download mode( install CWM or FLASH ROM via Odin) hold power button+ volume down it goes to Recovery mode with RED TRIANGLE!
Please help me I cant do anything...
Pics are included.
What I already tried:
- wipe data/ factory reset
- wipe cache
- install Custom ROM Paranoid
-install CWM or TWRP
-root again( SuperOneClick said: device allready rooted!)
- all options on Google

iam are the same problem !!!

cannot install CM12

My system is now KK 4.4.2 with unlocked bootloader
I download CM12 (nightly) from download.cyanogenmod.com - XT925 KK bootloader
I intended to install CM12.zip via Phil Touch recovery but it failed and this message appeared:
This package is for device: xt925, vanquish_u; this device is .
E: Error in /storage/sdcard1/....CM12.zip
(Status 7)
Installation aborted.
Then I used TWRP recovery instead of CWM.
The installation was successful, but in a short time (faster than installing gapps)
I made the phone rebooted.
When the system was on, it showed an error dialogue and self-rebooted to boot animation graphics immediately. Then, it became an endless loop
I had to reflash stock KK system via RSD
What happenned to my XT925????

Try flashing CM11, factory reset, then CM12 nightly dirty flash. That way I got it to work. You need to remove the first line "assert..." in a file inside the zip to make it work with philz. Normal install or update of CM12 nightly works only with current cyanogen recovery for me.

The problem is the gapps file
I've only installed the CM rom via TWRP and the system is now running without gapps

Yes you need gapps for 5.1, best from the CM wiki

Please someone help me, I'm desperate

I was with my xoom with stock rom 4.0.4 ( MZ605 / Brazil ) , with the unlocked bootloader and root , so I installed TWRP Recovery 2.7.1.0 touch , already had it installed , but installed this by up to update I gave the right wipes and tried to install 4.4.4 TeamEOS - The Revival || Nightlies ( full_everest_ta-eng-zach.zip ), but the following error appears
skipping MD5 check: no MD5 file found
symlink: some symlinks failed
E: error executing updater binary in zip '/emmc/full_everest-ota-eng.zach.zip'
Error flashing zip '/emmc'/full_everest-ota-eng.zach.zip'
failed
I tried to mount the internal USB to try to install another rom , but the TWRP is not riding the xoom on my notebook , and all xoom drivers are installed , I tried installing the original room for fastboot , but it does not recognize and can not that you start the process
Please somebody help me , my xoom is unusable and I'm desperate about it

I put another rom on my sd card, I gave the wipes and tried to install, but now it appears
Device is NOT bigpart partitioned...
I think I lost my device even

kingdomjunior said:
I put another rom on my sd card, I gave the wipes and tried to install, but now it appears
Device is NOT bigpart partitioned...
I think I lost my device even
Click to expand...
Click to collapse
Maybe you need to follow this :
http://forum.xda-developers.com/showthread.php?t=2506997
in order to make your device run bigparted Rom.

[Completed] Can't install custom Rom on my Xperia miro st23i

I really want to install custom Rom on my st23i but when I do its always failed. (With BL unlocked, rooted and stock firmware 11.0.A.5.5)
At first I tried to install cm11, on installing cm11 it says installation complete. But when I tried to install cm11 gapps, it says installing package failed. (I wiped data and cache) I rebooted my phone and it bricked( stucked on Sony logo) but I recovered it. ( I directly downloaded the rom and gapps to my device)
At second time, I tried to install lollipop Rom 5.1 ( I saw it on google) ( I wiped cache,data and delvik) but when I install it says " Installation aborted" ( no status 6/7 just installation aborted only)
( Directly downloaded the rom to my device)
And at the third time :/ , I tried to install HFS MATERIAL ROM EDITION FINALE but again it says " E: can't open /sdcard/download/HFS-MATERIAL-Rom-Edition-Finale-Miro.zip
(bad)
Installation aborted. ( Directly downloaded all the requirements to my device) ( I wiped cache,data and delvik)
ALL MY THREE TRIALS, I FOLLOWED CORRECTLY ALL THE STEPS AND PROCEDURE.
Can anyone tell me what's wrong? I'm thinking that the problem is on my phone.
And I got also a problem when I'm making a nandroid backup it's just backing up my system but when in backing up data its failed and the backing up stops.
Hope Anyone can help me.
Thanks in advanced.

This thread has been closed, as it appears you have made your way to the forum that can offer the best assistance. http://forum.xda-developers.com/xperia-j-e/help/install-custom-rom-xperia-moro-st23i-t3311954.
Welcome to XDA Developers and happy learning:good:

Softbricked - TWRP errors / flashtool fails [Vernee MIX 2 4gb ]

Hello,
I accidentally deleted the OS on my device when I installed TWRP.
[TWRP 3.1.1 by Jemmini]
The problem is that in TWRP I can't install or do anything in it.
I got error messages to almost everything, (I can't install, copy, even cant install from sdcard) like [1] [7] [8].
Everything is copied to phonne is corrupted or the installation cannot be completed beccouse of an error message.
Being a newbie, i wanted to flash the Stock roms without any success.
Downloaded two roms and I cant use flashtool.
Does anyone has any ideas about my phone?