I have an Epson R3000 that I've been using refillable cartridges with. The LLK cartridge was not being recognized. Realizing that I've had the cartridges for a while, I figured that battery died (it happened to one other cartridge in the past). I decided to order new chips for all the cartridges.
I replaced the LLK cartridge chip and not knowing if it needed the reset, I reset the chip by shorting out the two contacts with a paper clip. The cartridge still wasn't recognized.
I tried the same procedure with a recognized cartridge, the C cartridge. When I put the cartridge in with the new chip, it wasn't recognized. I put the old chip back on and it worked fine.
I next tried replacing another chip but this time, I did not reset the chip. The new chip was recognized. I did this for the remaining cartridges and they were all recognized.
So obviously, I should not have reset the LLK and C chips as they are the only two that are not being recognized. Why did this happen? And is there any way I can get them working again?