Hardware analog stick not working

[xsdfr]

i was replacing my screen yesterday (psp 3k) after which my analog stick randomly stopped working. no inputs register, except a very slight chance it might get stuck and start inputting down-right. i thought that the ribbon cable for the stick must've disconnected, but reconnecting it didn't fix anything. any guesses? should i just buy a new stick?

 

[IsodremOlucnaf]

I have a pair of PSP 1000 who register "ghost inputs" on the analog even if the analog module or the rubber.... conductive... thing... are not installed, i think theres something wrong with the motherboard.
Have you tried to fire up the console without these pieces installed?

 

[xsdfr]

I have a pair of PSP 1000 who register "ghost inputs" on the analog even if the analog module or the rubber.... conductive... thing... are not installed, i think theres something wrong with the motherboard.
Have you tried to fire up the console without these pieces installed?

yes, i have. when the analog stick is disconnected, nothing happens.

 

[CoolMe]

i was replacing my screen yesterday (psp 3k) after which my analog stick randomly stopped working. no inputs register, except a very slight chance it might get stuck and start inputting down-right. i thought that the ribbon cable for the stick must've disconnected, but reconnecting it didn't fix anything. any guesses? should i just buy a new stick?

Check the pins on the the rubber cable connector, for any dirty/or even broken/ missing pins. Make sure it's plugged in the correct orientation.
I don't think the flex cable on the left side that has the L button & dpad inputs has any control over it, but if it's not glued to system the aforementioned buttons won't function properly, not sure if it could affect the analog stick tho.