cx70无故死机，关机。怎么办？

770121

cx70无故死机，关机。怎么办？

xdere

cx70是65系列吗？

770121

cx70是65系列

soundwin

原帖由 770121 于 2006-10-31 14:49 发表

                               
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cx70无故死机，关机。怎么办？

解决，引一份西门子的内部文档

Subject: “Switch Off” with C65,C70,CX70 Infineon Chipsets

Dear all,
in a some cases the above mentioned mobile phones manufactured before date code T7 and
assembled with Infineon Chipsets
show automatic “Switch Off” problems.


Attention: The majority of C65, C70, CX70 are not affected, due to usage of “Hitachi Chipsets”.

Explanation: There are 2 failure causes.
- A software caused problem ( Exit Code 004)

- A hardware cause problem ( Exit Code 008)

( timing of the 26MHz oscillator)


Solution:

Check the exit code (use X-Focus)

- For the SW-Problem, a software update > SW 54 solves the problem
- For the 26 MHz oscillator timing, resistor R4019 has to be replaced versus a new one.

Part-Number: L50652-C391-J2
Value 390 Ohm