How to backup Pantech IRON2’s partition table

I recently bought a second hand Pantech handset IRON2 at some 900 dollars; it’s really a nice deal since it looks quite new, cute and quite a performer. In case you do not know this brand yet, it’s a Korea handset maker who was said to go belly up last year. I haven’t heard much about it since then.

It seems Pantech phones get bricked easily now in the update process, so I decided to backup the whole partition in advance. Although I only tested it on A910, it should work with all A series devices although differences should exist. However you should use it cautiously, as always.

phoneinfo

1. We need to find the file phoneinfo. You can either extract it from Pantech official ROM or pull it from your phone. I choose the latter.

2. Open Root Explorer and navigate to /dev/block/platform/msm_sdcc.1/by-name and find phoneinfo, take a note of the content inside the yellow rectangular box.

3. Open a terminal (I use system tuner pro) and type su and hit enter to gain root access. Then copy and paste below line to your terminal and hit enter:

dd if=/dev/block/mmcblk0p10 of=/sdcard/phoneinfo.img

here ‘mmcblk0p10’ is what you see in the yellow box in step 2. Now you should be able to see phoneinfo.img in your SD card which stores your partition table. You can use WinHex to view the partition information.

partition
4. Backup the whole partition. Pantech A910 has 29 partitions; here I only backup 28 of them as the last partition contain all your data, files and videos etc. I backup these data from time to time.

a. Before we start, make sure your TF card has at least free 10G capacity.
b. Then reboot into Recovery and connect it to your PC without doing anything in your handset.
c. Download this file and extract it. Then run A910backup.bat and wait, it takes a little longer backing up the last partition.
d. Reboot your phone and you will see 28 .img files.

If you are a regular visitor here, you may know my post about unbricking Qualcomm Snapdragon powered devices. You need a file ending with_msimage.mbn in unbricking your handset, that msimage.mbn file actually contains your partition table, whose counterpart is the phoneinfo.img here. Change the extension from .mbn to .img and open it with WinHex and you will see.

That .hex file contains the code your CPU will execute in unbricking your Smartphone. If you need these two files, try to find them in official ROMs with the same CPU inside.

Posted by Alex Zaah | Category: Others | Tags: ,

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