use wire and solder pin (I show in top picture)
after soldering wire connect to PC
if you see 2268 pram
cut the wire (but no disconnect flash)
download uptool ver2093
go setup
first in user interface
enabled clean button
after do that
in main menu click clean flash
to erase all the old bad firmware
second
after clean flash
firmware again
in settings flash memory
downgraded flash
low level
smart test
ecc 12
4200 is phison 2251-68
before connect to PC
hold 29+30 band pin
to get the ROM code mode
if you real old article get that
after see the drive you can
re firmware uptool 2093
and capacity mode
band is downgraded
2c mean to capacity mode
your flash nand pin is unplug solder again
flash must have a nand id
example
Flash ID code: EC1AA8DE — Samsung K9BFGD8U1M — 2CE/Single Channel [TLC-8K] -> Total Capacity = 32GB
after soldering wire connect to PC
if you see 2268 pram
cut the wire (but no disconnect flash)
download uptool ver2093
go setup
first in user interface
enabled clean button
after do that
in main menu click clean flash
to erase all the old bad firmware
second
after clean flash
firmware again
in settings flash memory
downgraded flash
low level
smart test
ecc 12
good luck
before connect to PC
hold 29+30 band pin
to get the ROM code mode
if you real old article get that
after see the drive you can
re firmware uptool 2093
and capacity mode
band is downgraded
2c mean to capacity mode
but to day just update ony isp And Dont clean nand in uptool
put this line in mp.ini
ISP ONLY=1
orange wire GND
blue pin is (eml3020 (pin 4 (out put 3.3)
ic name is no matter ,you can use any ic (5v to 3.3)
first read the datashet
and may be ic pin is different
so READ THE DATA SHET and do that
good luck
find very old flash (some smi ) have 5 to 3.3 volt
how i find?
example phison 2207 th58teg8t2jta20
good luck
your flash is smi
connect 29+30 nand flash pin
your flash nand pin is unplug solder again
flash must have a nand id
example
Flash ID code: EC1AA8DE — Samsung K9BFGD8U1M — 2CE/Single Channel [TLC-8K] -> Total Capacity = 32GB