Asus x555LD touchpad not working

[ktmmotocross]

Hello. Have this Asus X55ld that have not working touchpad. dont have schematic or boardview so anybody know where to start searching for fault?

[Jesse James]

Re: Asus x555LD touchpad not working

Did you check in control panel if its enabled
Does it show up in device manager

I had Asus where guy was using aftermarket charger and in that case was trackpad issue

[caspian]

Re: Asus x555LD touchpad not working

first download the boardview from this thread:
https://www.badcaps.net/forum/showthread.php?t=60549
then, follow the procedure mentioned in this thread to find the cause of the problem:
https://www.badcaps.net/forum/showthread.php?t=75720

[ktmmotocross]

Re: Asus x555LD touchpad not working

i did the measurement and all looks good. even compared to another board.

have 3vs, 3.3v on data line, resistance looks good too. have spare touchbar thar not work too

[caspian]

Re: Asus x555LD touchpad not working

so this is a strange kind of touchpad problem that does not give any clue. thus, more tests should be done to find a clue to discover what component is defective.

[mosfetratus]

Re: Asus x555LD touchpad not working

DRIVERS! I had same problem, trackpad wont work. Bugged drivers or something windows related.

Uninstall drivers from device manager and remove trackpad software. Restart PC, it should install generic drivers.

this asus notebook is total garbage. GT820M throttles with fresh thermal paste. Trackpad problems. Stupid motherboard design.

[SMDFlea]

Re: Asus x555LD touchpad not working

The grounding tape thats used can break down over time.Solder some jumper wires

[ktmmotocross]

Re: Asus x555LD touchpad not working

have spare flex. little longer but same wide.

grounding tape?

[ktmmotocross]

Re: Asus x555LD touchpad not working

how is touchpad identified in device manager?

[KenSea12]

Re: Asus x555LD touchpad not working

Try to set the default set-up in BIOS Setting Sir

[ktmmotocross]

Re: Asus x555LD touchpad not working

Try to set the default set-up in BIOS Setting Sir

allredy done. i was thinking about bios reflash

dont know if latop see that touchpad

[SMDFlea]

Re: Asus x555LD touchpad not working

have spare flex. little longer but same wide.

grounding tape?

Well, i call it grounding tape.Its the fabric conductive tape in the picture above the white sticker on the left (its an acer netbook).Without that tape or a jumper wire its erratic or doesn`t work at all .Theres another large GND pad on the right where i can run a jumper wire to the surrounding metal bracket .

[ktmmotocross]

Re: Asus x555LD touchpad not working

solder a wire from big ground pad to gnd of board but nothing changed

[SMDFlea]

Re: Asus x555LD touchpad not working

solder a wire from big ground pad to gnd of board but nothing changed

Ok, it was worth a try .

[mosfetratus]

Re: Asus x555LD touchpad not working

how is touchpad identified in device manager?

Device manager:

under, mouse and other pointing devices, should have name ASUS.

[ktmmotocross]

Re: Asus x555LD touchpad not working

no, dont have

[mosfetratus]

Re: Asus x555LD touchpad not working

no, dont have

It should be asus smart gesture or asus support device (generic drivers).

Try booting latest hirens CD with linux or mini windows 7/10, they should have generic drivers. To test if it's windows/drivers problem.

because in my case it was exactly it - Drivers.

[ktmmotocross]

Re: Asus x555LD touchpad not working

i ty boot latest ubuntu witout luck for working touchpad

[ktmmotocross]

Re: Asus x555LD touchpad not working

Guys its look like a common X555LD problem. Have repaired another board and have same problem. Just replaced main mosfet and dport to lvds convertor IC.

Does anybody have guide how to solve this problem?

[caspian]

Re: Asus x555LD touchpad not working

replace the two inductors which are located near the Touchpad connector on the mainboard. this may solve the problem.