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Samsung SGH-600 mobile phone , a slim volume of its small form factor , by the user's favorite female , 99 years of a more popular phones . These phones are more common kind of failure can not boot , boot cause of the malfunction caused no more, there is also a hardware failure software failure , easy to find and judge during maintenance , overhaul and because ideas do not cause false correct the fault sentence , resulting in economic losses . Now do not turn this failure will cause the more common point of failure for everyone introduced one by one , for all service personnel reference and reference .JxVservice manual download site
There are two types of power failures caused no reason , one is due to a software error caused by the data , and the other is due to hardware damage caused .
First, the data error generated by the software does not boot failure
Mainly chip EEPROM (X24645, 24LC64) system version IC (Flash 29LV800) and data registers (LRS1306) internal data errors or damages caused by hardware components , methods to address this failure is these three data storage chip Remove and re- write the correct software data , then re-install the chip on the phone , the failure can be ruled out . Due to differences in the origin and production time sales regions , so the phone has a different version of the data , the main entrance is the program parameters to the EEPROM chip data and system version IC (Flash) is relatively consistent , self-test boot the phone to work properly , so version parameter to distinguish repair process data written information . There are several points to note in the repair process :
¢Ù, because the system version IC (Flash 29LV800) open welding power failure caused by not very common, before removing the Flash rewrite data to Flash repair welding is best , if troubleshooting , you do not need to rewrite Flash, to avoid duplication of work.
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