Generic rk3128 tab parameter file resize userdata partition

[rellik1000]

Looking for some help resizing a userdata partition on a cheap rk3128 tab.

I've resized a 4.1 rk3066 tl869 stick,change userdata size,adjust offsets,format sd after it boots....cake.

<1G internal memory seems ridiculous now a days specially with the KK sd write issue.6 installed apps 2/3 memory used WTF.

These chips are pretty new so I couldn't find much on them,but they do seem to similar to earlier rk architecture,I did have the to insert the new PID 310c to driver inf to install the rk drivers.Managed to dump OOB imgs with rk rom dumper.

the parameter file looks pretty standard.
I tried resizing userdata partition,adjust img offsets accordingly,erase nand,write em back to the tab.....
It just hangs at boot animation.It will boot to loader and recovery.

I've tried writing numerous combinations of imgs,the only way I can get to boot is to write ALL img back to the tab with the original parameter file with no sd available on first boot,then factory reset to reformat the nand.


Here is the rk3128 OOB parameter file:

FIRMWARE_VER:4.4.2
MACHINE_MODEL:rk312x
MACHINE_ID:007
MANUFACTURER:RK30SDK
MAGIC: 0x5041524B
ATAG: 0x60000800
MACHINE: 312x
CHECK_MASK: 0x80
KERNEL_IMG: 0x60408000
#RECOVER_KEY: 1,1,0,20,0
CMDLINE:console=ttyFIQ0 androidboot.hardware=rk30board androidboot.console=ttyFIQ0 init=/init initrd=0x62000000,0x00800000 mtdparts=rk29xxnand:0x00002000@0x00002000(uboot),
0x00002000@0x00004000(misc)
,0x00008000@0x00006000(resource),
0x00006000@0x0000E000(kernel),
0x00006000@0x00014000(boot),
0x00010000@0x0001A000(recovery),
0x00020000@0x0002A000(backup),
0x00040000@0x0004A000(cache),
0x001FE000@0x0008A000(userdata),
0x00002000@0x00288000(metadata),
0x00002000@0x0028A000(kpanic),
0x00180000@0x0028C000(system),
-@0x0040C000(user)

it looks like a pretty standard rk parameter file besides a few extended partitions.

Heres my adjusted parameter file:

FIRMWARE_VER:4.4.2
MACHINE_MODEL:rk312x
MACHINE_ID:007
MANUFACTURER:RK30SDK
MAGIC: 0x5041524B
ATAG: 0x60000800
MACHINE: 312x
CHECK_MASK: 0x80
KERNEL_IMG: 0x60408000
#RECOVER_KEY: 1,1,0,20,0
CMDLINE:console=ttyFIQ0 androidboot.hardware=rk30board androidboot.console=ttyFIQ0 init=/init initrd=0x62000000,0x00800000 mtdparts=rk29xxnand:
0x00002000@0x00002000(uboot)
,0x00002000@0x00004000(misc)
,0x00008000@0x00006000(resource),
0x00006000@0x0000E000(kernel),
0x00006000@0x00014000(boot),
0x00010000@0x0001A000(recovery),
0x00020000@0x0002A000(backup),
0x00040000@0x0004A000(cache),
0x00600000@0x0008A000(userdata),
0x00002000@0x0068A000(metadata),
0x00002000@0x0068C000(kpanic),
0x00180000@0x0068E000(system),
-@0x0080E000(user)

I'm thinking that it needs to be formatted before it will boot.

I've flashed generic CWM and TWRP recoveries successfully but it has no hardware volume keys to select options,no response from external kb or mouse.

This has become a quest.But I really do luuuuuuv this stuff
Proud to be an Android whore.

Thanks

[rellik1000]

BY REQUEST from y0rch

FLASH AT YOUR OWN RISK
The file link contains the stock backup for this tablet.
I don't own this tab any longer but I do remember having to restore ALL included img to get the tab to boot properly.

The loader.bin file is not the original from this tablet.I got it from the only RK3128 image I could find.

I only included it,as a last resort,in case someone f'd their bootloader too.I cannot confirm this loader will work.

DON'T FLASH THE LOADER UNLESS YOU HAVE NO OTHER OPTION TO RESTORE THIS TABLET.

GOOD LUCK
DON'T BLAME ME

rktab_stock.zip