u盘数据修复的维修经验（U disk data repair and maintenance experience）.doc

u盘数据修复的维修经验（U disk data repair and maintenance experience） My friends are very concerned about a technology is also very difficult to learn to do a simple introduction to everybody, a lot of friends advice we want to know u (USB) method for data recovery method, summed up the following to be introduced to meet no professional data recovery equipment maintenance personnel: a lot of people met requirements for data recovery of customers, but they do not have a clear way, following the case of USB (USB) specific methods of data recovery to explain: One case: a customer requirements for disk data recovery and disk capacity of 256M, access to the computer without any reflection brought customers! CAD drawings are very important because of the internal engineering 1, open the disk (USB) is one of the packaging for customer requirements, as long as the data, so the shell does not need to be considered, the main control now use i5062 apart The programme is as follows: (1): VCC main power supply voltage check (normal vcc=3v power supply is the key to whether the voltage U disk) (2): by measuring the clock oscillator clock ends with voltage of about 0.8V, the preliminary judgment of the clock circuit is normal, the substitution method to replace the fault still (crystal clock signal is necessary to master the _) vgtm V (3) communication: through the above two points of measurement, preliminary judgment, power and clock are normal, mainly check whether the communication line is normal, check and d- to the main control line is normal! (4) through the above measurements, we can make a preliminary judgment that all the work conditions of the master control are complete, and the rest is the master control problem. I believe everyone will replace the control to achieve the purpose of data recovery, but we have many years of experience tell you wrong, because the internal disk main control chip control procedures, when replacing a new master is not identified in control of flash, mu