[TUTORIAL] How to change the /system, /cache and /data partitions for Karbonn A5
To begin with, you need a hex editor, HxD - Freeware Hex Editor
is a great editor and it is very small(less than an MB). Then you need a baseband to edit, you need to locate the file named ' appsboot.mbn '.
That file contains the partition tables, remember this tutorial is about editing the partition tables not extending your physical memory.
So, lets get cracking. Open HxD from programs and open the appsboot.mbn file, now press F3 and search for ' cache ' and press F3 until you see something like this
As you can see the highlighted section of the picture
there are a few repetitions of ' F0 F0 F0 F0 xx ' multiple times, you are concerned with only the first two /system and /cache partitions respectively.
Remember, you don't need to specify the partition size for /data as it is done automatically when you flash the baseband.
Now back to the hex editing part, once you've decided how much space(in MBs only) you wanna allocate to /system and /cache use this link to Convert hex/dec
and select the two digits after the F0 F0 F0 F0 like in this pic
and type the hex number for example in the screenshot B4 in hex equals 180 in decimal, which means /system is allocated 180 MB of space and do the same with Cache, I would recommend allocating 10 MB to it as you hardly ever use it. Then flash the baseband like you normally do through Fastboot.
If you have any doubts ask me and I will do my best to clear things to you. Click Thanks if I helped you, doesn't cost anything