hi am using a psp 1000 and me pandora battery just will not work.acting like a normal battery and thats it

keeping getting unable to write battery to eeprom

i have patch my sony battery using hellcat recovery flasher using make the battery a pandora one and thats work.

When i use my sony battery and hold down the L button it does enter recovery mode and works

but the pandora battery i got just does,nt