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Nokia GSM phone from its wide range of styles varied , design alternative and widely welcome by all walks of life , especially for young people to be able to novelty, odd , divergent psychological . But Nokia is also a common and deadly failure affecting its development , which is a software failure . Since Nokia handset manufacturers conservative and unique design on the promise of a sub- software , software failure of its models have long plagued the maintenance staff to become a major problem , and now a large number of mobile phone equipment manufacturers has launched a very sophisticated instrument , the solution now NOKIA locks longer a problem. The following briefly discusses the kinds of Nokia software failure and repair method of forming process .h94service manual download site
First, the features of the Nokia software failure
Nokia mobile phone in addition to the earlier version 8110,3810 or chips can be removed in LABTOOL-48 on the programmer programming , the 5110 over the phone , as 5110,6110,6150,8810,8210,8850,7110,9110,3210,3310 etc. , can not be programmed . For example, if the cell phone is a good 5110 chips removed, read on LABTOOL-48 under the data , and then another good chip blank data compiled to just read people , and then loaded on the original phone , there will not recognize the card failure , no matter what the card installed , the phone will display "Please card ." If both the chip and the person filling the font does not recognize the card will result in failure . As can be seen above , the GSM mobile phone 5110 is not over for chip version programming . So, how to fix a software failure occurs it ? Addition to using free disassemble repair instrument repair , but it is to chip version , PCM codecs ( audio IC) while replacement. So, sometimes in the maintenance of Nokia phones , the handset is no sound , no fault is likely to send Huasheng terminally ill , because the amplified audio signal in PCM codec is completed , PCM will cause no damage to the handset sound, without sending Initials, Finals . The PCM codec replacement would involve replacement of some components of the software .
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