USB Not Recognized on MP5, How to Solved: Procedure Inside

rp_yonex

A

USB Not Recognized on MP5, How to Solved: Procedure Inside

Problem: USB Not Recognized

Action taken: Changed 64mb SDRAM (54 pins)

Tool's

> USB Cable
> Tester
> extra 64mb sdram, crystal Oscilator if needed
> Soldering iron & hot air

Procedure

> Open mp5 player and look for board id, lcd id, cam id, control chip id
> Look for bootmode and long press bootmode then plug USB cable, "error USB not recognized"....
> First, change crystal oscilator twice, no luck, still the same problem...
> Last tricks, resolder 54 pins ng SDRAM... still the same...
> Take note: all mp5 repaired done by just resoldering of SDRAM, base on my experience...
> Final last trick, change SDRAM to be sure that there will be no back-job... and check & detected already to program...see the pics...
> So, I set LCD id & cam ID in the verifier and click save & exit
> Flash mp5 using FRM Pro
> Done all working...


Bootmode
A Button

Board Information

Board ID: AJ262_V7 1gb

LCD ID : SAT24xxxxx .... set to 9325

CAM ID : XHB 7676F

CONTROL CHIP: Sunplus 3052A-HL171



FRM Pro

[Only registered and activated users can see links. ]


Universal Firmware for 3050/3052a

[Only registered and activated users can see links. ]



SDRAM Replacement Pics






Crystal Oscilator



USB Not Recognized



Flashing







Result ok







BR

rp_yonex