Well, mine I guess it's: HYNIX or MITSUBISHI.
How can I identify that?
Chip says: ANYKA ak3631LQ14402 FS06H9

Please help!

ANYKA is the processor Both Hynix and Mits make NAND flash chips - google the part number to find out the size.

This is the HYNIX memory: H27UAG8T2MTR-BC
And this is the Mitsubishi memory: M2V28S40TP

your hynix nand flash has the same memsize as my samsung = 16 gbit 8x = 16/8 = 2 gbyte
look at the blue signs = AG = 16gbit (same as my samsung)
the red sign = 8 = x8 (same as my samsung)
hynix: H27UAG8T2MTR-BC
samsung: k9gag08u0m / pcb0

M2V28S40TP = dram, not nand flash store memory

wait few days, i will prog a little php product code script for hynix/samsung nand flash (only for memsize) ..

Wow! That sounds great! At least we would use them with the real capacity and add them a 2gb mini sd.
Have you noticed that? Don't use SD or MICRO, USES MINI SD!!!

check ur nandsize with my little webtool, all hynix and samsung nandflash
with K9, H27 and HY27 prefix supportet. .. without grant, but its good for first hacked mem check.
NANDFLASH CHECKER

@tulius
not all pmp, but many can manage 4gb mini-sd

THat is so good!!! I've typed my memo and says 2gb!
I need to know now how to format it as 2 gb and work propperly.

thx,
with my postet download for anyka players u can format to real size,
burntool checks also the chip and format with real size.
u must save all ur hidden player partitions before, or u have a dead one.

ever its a risk to do hardcore format with burntool !

my second player was sell as 8gb, but its only 2gb .. i dont cry, have catch this one for tips ;)
buy this pmp's for less than 20 dollars all incl.
look for 2gb players, the best chance for real nand flash.

And where do I get that tool?