[Android General] motoracer47:
verify install procedure

Hi everyone,

First, I want to thank everyone that has been involved in this thread! Especially FoxtrotKZ and makbro!!!!

I have literally read the entire thread today, and my while I think I have a handle on this, at times it is kinda confusing, and with the length of this thread, there are some conflicting instructions, and I figure it would not hurt to ask questions before attempting anything.

My Device: A2107A-H 16GB 3G---USA version from ATT, which I believe means it will have 1 sim slot (have not received tablet yet) I live in USA and will need my device to work with ATT or Tmobile frequencies. I would like to flash Foxtrot v100 on here, and once working, goto Foxtrot v110.

My A2107 will be brand new, with factory ROM. Knowing that, is this still the correct process I should follow?

1. Install USB VCOM DRIVERS and install per "How to install ADB Drivers.doc"

2. Download and extract the archive "4.03root.zip" Now turn on your device, let it boot completely, then run the batch file named "root.bat" in the folder that you extracted in previous step ...It will start rooting your device...Now this is probably tricky and most important, Your device will restart 3 times before it's completely rooted, each time the batch script tells you to "press any key to continue" you have to wait until the device restarts completely, then press any key...After the third reboot, the batch script will tell you rooting is complete...

3. Create a BACKUP of my stock ROM..it seems there are multiple options for this, one being with Gscript lite, which has quite a long instruction set: Download and extract "Gscript Lite" attached with this post, copy the "gscript" folder to the root of your sdcard (internal)...Now install "GScriptLite.apk" and run it, needs root access, grant it...

3a-In the app hit the menu button and pick "Add Script" --->"Need SU?" must be checked ---> "Load file" ---> select "back_mt6575_a4_v2d.sh"...

3b-Go to "Settings"--->"Display" and set dim display timeout to at least "30 minutes"...

3c-Now run the app "Gscript Lite", click on the script you loaded named "back_mt6575_a4_v2d.sh" and wait for about 10 minutes while it creates a full dump of your ROM at "/mnt/sdcard2/back-up v2" folder (that is your external sdcard)...

3d-For a second full ROM dump, run the software "MTK Droid Tools" on PC with device fully booted and connected to PC--->select tab "root, backup, recovery" and check the box "Backup userdata and cache"--->click "Backup"...Now Droid Tools will make a full back-up of your ROM and save it in the folder "backups" inside the main folder of MTK Droid Tools...

These two back-ups will have all the files required to flash the ROM of new device to any device using SP Flash Tools...These are :-

PRELOADER (.img or bin)

DSP_BL (.img or no-extension)

MBR (.img or no-extension)

EBR1 (.img or no-extension)

UBOOT (.img or bin)

BOOT (.img)

RECOVERY (.img)

SEC_RO (.img)

LOGO (.img or bin)

EBR2 (.img or no-extension)

ANDROID (.img)

CACHE (.img)

USRDATA or DATA (.img)

FIRMWARE.INFO

Download and extract "MTK ROM Studio" also attached with this post...Run its .exe on PC, open the file "Firmware.info" generated by "Gscript Lite" back-up and click "File"--->"Save Scatter" to generate "MT6575_Android_scatter_emmc.txt" automatically...

Now you are good to go

4. CWM Installation:

4a-turn on USB Debugging on your tablet

4b-connect the tablet to your PC (if it's the 1st, some default drivers will install - that's ok)

4c-tap on the notifications area in the "Connect as" change to "MTP" - this is quite important !

4d- from the downloaded package run the "Flash_tool.exe"

4e-click "Scatter-loading" on the right and find "MT6575_Android_scatter_emmc.txt"

4f-in the list in the lower part of the window you MUST have the "PRELOADER" (super important) and "RECOVERY" ticked and leading to the correct files. The PRELOADER = "preloader_lenovo75_a2_ics.bin" (in the package) and the RECOVERY is the recovery file of your choice -> there are 3 in the package - pick the one you want. You can flash them over and over so if you don't like one then try the other.

----- MUST USE CWM 5.5.0.4------------

4g-click "Download" above - you will see a prompt saying that not all images were loaded - that is fine - we only want to flash the RECOVERY - so click "Yes"

4h-now the Flash tool is waiting for the tablet - press "reset" on the back - Windows will recognize a new device (and WILL NOT find the driver unless you have done it before) - no worries, you have the correct driver.

4i-open Windows "Device manager" and locate the MT65..... unrecognised device -> update / install driver -> point Windows to "USB VCOM Driver" folder from the package and pick your system. My Windows 7 found the driver on the spot but asked to confirm the install - "insecure" driver - I obviously clicked "install anyway" and so should you.

4j-once the driver is loaded the Flash tool will flash the new recovery file - you will see some colour progress bars in the program - at the end you should see a green circle.

That is it. Unplug the tablet, press reset on the back and you can now enter the recovery mode.

5. first step now is to save your folder "nvram" (which is located at "/data/nvam") to your external sdcard and/ or your PC as well for safe keeping(you can do this using Root Explorer)...

6. Boot into recovery, perform 3 data wipes (Data, Cache and Advanced--->Dalvik Cache) and then use "Install zip from sdcard" option of CWM and select the ROM zip file to install...

7. After completing installation, power-on device in new ROM and delete the folder "/data/nvram" and copy the backed-up "nvram" folder from first step...

Is this still the correct procedure? If not, could someone explain what needs to be done differently?

If this is the proper procedure, I will have my device rooted, backed up, and flashed to the Foxtrot ROM...will I be able to get 3G in USA with this setup?

Thanks in advance for any help, sorry for the really long post.