[Dell Venue] mrgardiner:
bootloop help and reference links for Dell 7840 files

brettOutlaw or Wonglynn2004,

Did you have much success fixing the boot-loop? I was able to get my tablet rooted with social design concepts' droidboot files (1,2,3) and to unlock the bootloader, but managed to screw up my system to the dell boot-loop screen, by either installing busybox or erasing the wrong partition when trying to use Aparted on a 64gb card to get ext4.. At this point I still had access to CWM tethered.

I made it worse after flashing the ..BB.XML file below and I saw the blue USB image briefly, but still have fastboot. Fastboot screen details listed below as well as links to files and thread references. I hope I got all the references & source credit correct.

After using the flash_DDO_BB.xml to reset, and erasing for a clean start I no longer can get CMW tethered to work. The T4 Trigger has some write error / access problem. With fastboot I hope I can get this working again with some minimal help here. I am using an older Toshiba Win8 tablet and not sure about getting ADB fully setup. I used the Minimal ADB -Fastboot installer to fix an older TF700 (old asus transformer).

There were some suggestions for using dd to copy from the SD card to the System partition, but I don't know if ADB will work, or just fastboot commands in the current condition.

Does anyone have time for step by step instructions either using the Phone flash tool, or if I have to setup ADB and use dd to copy the boot.img and system.img?

I have the link at the end for someone with success using DD to copy from SD to the system partition. Thank you for any help or suggestions between the multiple sources below or order for applying Phone flash files.

-mrgardiner

Can someone make a Sticky for boot-loop resources for the Dell Venue 7840?

1. Phone Flash tool and which files to flash

2. social-design-concept and vampirefo for root process and Trigger T4.

3. xBIGREDDx boot.img and system.img files (dd copy vs phone flash tool)

4. Developer files from Dell.

5. anggusss OTA update.zip 5.1

6. Root files Droidboot

7. minimal ADB - Fastboot installer

OTA update.zip for 5.1 from anggusss

venue_8_7840_lollipop_OTA.zip

http://xdaforums.com/showpost.php?p=60632439&postcount=21

Developer edition files from Dell:

http://opensource.dell.com/releases/Venue_8_7840_Moorefield/developer-edition/5.X/

xBIGREDDx system and boot img files

http://forum.datadevelopement.com/showpost.php?p=61173058&postcount=5

system.img: https://mega.co.nz/#!w9AjBCSI!YdQenTLDVVk0M9xx1LJT1OnKq5VhESgiyULA1FVIA8A

boot.img: https://mega.co.nz/#!Fk4FUSza!1gY1RjvnEI_HS0zk17WTHiywXFWc1VOCH-P2V5fVFPI

Someone with success using dd to copy above files:

http://forum.datadevelopement.com/d...-8-7840-developer-files-posted-t3144232/page3

Dell Flashphone tool:

https://01.org/android-ia/downloads/intel-phone-flash-tool-lite

http://xdaforums.com/dell-venue/general/venue-8-7840-developer-files-posted-t3144232

venue_7840_droidboots.zip

https://mega.nz/#!E1oijRRC!U8MK5s8q0TPzWJPNoM9sHxfxjvGcF_sk20SN5YfAqzA

Tethered Temporary Recovery from Social designs vampinfo

https://www.androidfilehost.com/?fid=23991606952604606

Chainfires UPDATE-SuperSU-v2.46.zip

https://download.chainfire.eu/696/SuperSU/UPDATE-SuperSU-v2.46.zip?retrieve_file=1

USB drivers from INTEL

https://software.intel.com/android/articles/intel-usb-driver-for-android-devices

Minimal ADB-Fastboot installer:

http://xdaforums.com/showthread.php?p=42407269#post42407269

Current fastboot screen info:

PRODUCT_NAME - BB

Variant - Venue 8 7840

HW_Version - unknown

Bootloader Version - unknown

IFWI Version - E004.F601

Serial Number - XXXXXXXXXX

Signing - unknown

Secure_Boot unknown