(以下一字一句都是原创!B&G硬件组制作!希望大家珍惜别人的劳动成果!)
看到大家整天说NO GSM,那里出了问题?今天就说说这NO GSM的问题!
先说说NO GSM的特征:
在开机的时候看屏下出现的英文,会出现NO GSM的字样!看图!
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开机之后,信号是打X的,看"设备信息"里,没无线,没IMEI(串号)!看图!
如果机子出现NO GSM,不用急!先搞清楚那出了问题!如果是刷机造成的就进3色屏,重刷!如果是摔过的,就不用刷了,很大可能是虚焊或摔坏了!下面就说说具体的解决方法:
先说说软件:如果刷机造成的!那你就找个官方的ROM(ROM和无线一体包)来刷!或单刷无线(刷低版本的无线或刷回出现NO GSM之前的无线)!如果还是刷不进的话,那不用再刷无线了,单刷回ROM,刷开机!不用再刷无线了,到这步就可以知道字库物理性损害或非物理性损害,再刷的话很容易也把CPU刷坏!
那怎么分析字库是物理性损坏还是非物理性损坏呢?下面就说说!
(注意:在使用MTTY时,不要乱输入指令,输入指令的时候不能复制,要自己输入!出问题自己负责!)
下载好MTTY,先把9000进入3色,然后把电脑上的同步软件的"允许USB连接"的钩去掉!之后手机连接电脑,在电脑上运行MTTY,在"端口"选择"USB"或"//M......."(不要选COM),选好就点"确定",出现对话匡!
出现对话匡了,按一下电脑的"回车键",
会出现"Cmd>"
输入:info空格8
输入好之后,按一下"回车键"
如果在检查结果里有看见感叹号"!!!",那就是坏区了,
输入:task空格2a
输入好之后,按一下"回车键"
再输入:info空格8
输入好之后,按一下"回车键",这时候手机就会重启!修复字库成功!
这时候,再刷无线!如果成功了就是说字库是非物理性损坏,如果还在没看到坏区和刷了也没用的话那就是物理性损坏,那就要换字库了!
下面就说说硬件上的问题了!
先看看关系到NO GSM的硬件!主CPU,多媒体CPU和多媒体字库!
多媒体CPU:Qualcomm(高通)MSM6275
多媒体字库:Samsumg(三星)K505657ACB
下面是他们之间的关系图!
从关系图上我们就可以看到,下面再详细说说他们的关系和工作原理!
首先按开机,电源就给主CPU电,然后主CPU工作(主CPU和主字库是在一起的),然后主CPU调用主字库的软件,手机开始工作,同时间,电源也给多媒体CPU电,主CPU也给多媒体CPU和多媒体字库供电,手机到开机画面了,多媒体CPU调用多媒体字库的软件,手机开机,开始搜索信号,手机待机!
从以上就可以知道如果以上有一个地方出了问题,手机都会不开机(主CPU如果出问题才会不开机,多媒体CPU和多媒体字库是不影响开机的)或出现其他问题!NO GSM就是其中的问题!他们三者就好象铁链一样,有一环钩不紧就会出问题!
先说说虚焊!
虚焊,多是摔或大家有时候压到手机造成的!他们之间,有供电,和数据的交换!如果其中一个供电线或数据线虚焊了都会出现NO GSM,如果是虚焊就算你刷一千遍都不会好的,只会把其他刷坏!所以刷一两次不行就送修了,不然越搞越坏!
字库的物理性损坏!简单说就是坏了!字库保存着很多数据!多普达的机和其他几不一样,把信号的数据也做到字库里面去!
(下面加段小插曲,解释下多普达和其他机不同的地方:
首先说说多普达手机和其他手机不同之处!
大家都知道多机是以PDA(PDA就是多媒体部分)部分为先,手机部分为后!而其他牌子手就以手机为先,PDA为后,有的还没PDA部分!
从这点就很清楚可以知道,多机是做PDA部分先,再做手机部分(大家回想以前的手机就知道何为手机部分:就是纯打电话,发信息,那就是只有接收和发射!没有其它多余功能了),而其他牌子手机一直都是以老本行(就是手机部分)为主,再加入PDA部分!那也就是说为什么多机总比其他机信差!(不过现在多机信号改善了很多了)!
再说说多机字库和无线的关系,多机就好象其它牌子手机那样,用软件完美PDA部分,多机就以软件完善信号部分!那就是为什么多机比其他机多出个无线版本(radio),他的做在多媒体CPU和多媒体字库里,(现在高通CPU就已经把这两部分做在一起了,负责储存的还是字库!),这里就要说说其他牌子手机子了,其他牌子手多媒体部分是不影响信号的!
总结:
简单说:多机的多媒体部分包括信号(radio),而其他机子多媒体(这里的多媒体:手机部分以外的功能!)是只有多媒体,不包括信号部分!)
如果字库坏了,不是换这么简单,字库里面的数据分三层!第一层是日常用到的数据,第二层是开机数据,第三层是低层数据,那就是他和CPU之间工作需要的数据,新的字库是没低层数据的,所以要用仪器把数据从旧的字库写到新的字库里面去,才可以用!多媒体CPU和多媒体字库之间就是用这相同的低层数据才能正常工作!所以如果是硬件上的问题,就要找专业点的维修师傅修,不然也会越搞越坏!
You may have useful information, BUT you must provide an english translation (Even if it's only a Google translation!!!)
Mike
Related
HTC Rose (S740) Service Manual - www.mikechannon.net
thank you mike
schiefersoft said:
thank you mike
Click to expand...
Click to collapse
Well it's better than using the
"throw it around a bit, it's bound to come apart all by itself" method!!
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Although this is the recommended technique for iPhone users
Mike
the only necessary tool to open a iPhone is a big stone
http://www.touchpodium.com/2008/08/13/destroyed-iphone-3g-images/
thanks mike
looks like a keyboard change is a really big hassle
(以下内容全是原创!希望大家珍惜别人的劳动成果!由B&G制作!谢谢!)
希望xda论坛有会中文的朋友帮我翻译成英文!本人英文很烂!谢谢!因为很想跟xda论坛的朋友分享我的硬件贴!这是我2007年写的!
首先我们看看9000的主要构造!
1.主板背面
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(这里的无线是WIFI)
2.主板正面
3.大键盘和排线
9000主要就是这几大部分组成!下面就说说硬件的问题!
首先说说不开机!9000如果不开机,以我修这么多9000来说!
一.软件问题!解决方法:刷机!
二.开机键坏或脏了!解决方法:换或清洗!
三.电池坏!解决方法:换!
四.电源坏!但9000有4个电源!2个是关于开机的!下面就看看有那些!
1.供电电源
2.开机电源
如果这两个坏就要换了!
五.主CPU主字库坏!解决方法:换!(注:多媒体CPU和多媒体字库坏是不会引起不开机的!因为已经把自己的9000的多媒体CPU和多媒体字库取下来还是开机的!多媒体CPU和多媒体字库坏只会引起软件问题和NO GSM!)
不开机故障多数是这些问题!
下面说说白屏问题!
会引起白屏的有:
1.主CPU主字库和AIT显卡!
不过主CPU主字库和AIT显卡很少出问题!除非是进过水或摔过!解决方法:换!
2.排线和前小板!
排线和前小板是很经常出问题的!如果排线有问题换就OK了!如果是前小板问题!补焊下或换就OK了!
如果没灯光就是滑轮或电源坏了!
解决方法:换!
横屏问题!
如果那一天你的机子不能横屏了就是键盘排线问题!
解决方法:换!(如果大键盘按键有问题也是换就可以搞定了!)
不能读SIM和内存卡!
如果不能读SIM!解决方法:换SIM卡或清洗或换SIM卡座,或多媒体电源坏!
点屏不准(漂移)!解决方法:换排线或换触屏!如果换了都不行就是主板问题!还有一个很简单的方法:在屏上4个触屏接口飞线到排线相应的脚位就OK了!
不能同步电脑,不能冲电,耳机听歌没声!解决方法:换尾插!(不能同步电脑有的是CPU问题!不能冲电有的是电源坏!)
摄像头打不开!解决方法:换摄像头或相机IC坏!
不过相机IC很少坏!除非是进水了或摔过!
自动关闭软件,屏点不停点屏的右上角问题!看图解决
下面就是大家很关注的NO GSM!上面已经说过了!NO GSM就两个地方的问题!就是多媒体CPU和多媒体字库!关键就是那个坏!多媒体CPU坏换就OK了!
如果是软件造成的NO GSM!相信xda论坛的高手都知道怎样解决我就不说了!
上面就9000经常出现的问题和解决方法!
真的很希望有会中文的朋友帮我翻译这篇文章!我还有很多硬件贴分享!谢谢!
http://translate.google.com/
As said above:
You may have useful information, BUT you must provide an english translation (Even if it's only a Google translation!!!)
Mike
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Neobox OEM, no specific models. Only the appearance of images. Who can provide ROM to [email protected]. I thank you very much
Use google translate, sorry.
Use google translate, sorry.
Problem has been resolved
------------------------------------------------------------------------------------------------------------------------------------------------------
已经找到ROM。现在给出连接,分享给需要的朋友。 2014年2月25日22:02:38
我的账号不能直接发链接。请看图片 。
View attachment 2599955
-------------------------------------------------- -------------------------------------------------- --------------------------------------------------
Have found ROM. Now given connection, sharing a friend in need. February 25, 2014 22:02:38
My account can not directly send link. Look at the picture.
HERE I'M TO SHARE MY FIRST THEME FOR CM12.1 / CM12 ##UPHEAVEL-LIGHT##
##DESCRIPTION##
This Theme Is My First Creation For CM12/12.1 And Has A Eye Touching Combination Of Material Colors To Provide Best Looking Interface
##WHATS-THEMED##
[*]Framework
[*]Browser
[*]Calculator
[*]Contacts
[*]Dialer
[*]DocumentsUI
[*]Gallery
[*]Mms
[*]Settings
[*]SoundRecorder
[*]SystemUI
[*]BlisspopUpdates
[*]CyanogenMOD Account
[*]Eleven[CM_Music]
[*]CM_FileManager
[*]Trebuchet
[*]AudioFX
[*]ThemeChooser
[*]Whastapp
##SCREENSHOTS##
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}
##DOWNLOADS##
GoogleDrive
NOTE!!
You Must Reboot Once After Applying The Theme So As To Avoid Any BUG Or Any Other Issues
IF YOU LIKE THIS THEME....PLEASE SHARE IT WITH OTHERS AND HIT THANKS
Hi, I have a Dynavin D99 (N6 version) 10R-03 1086
I have a problem, actually windows CE work's normally, but android system doesn't work at all.
And I want to install the new android.
So here are my questions
1. What kind of device do I have?
2. What kind of custom rom should I use?
3. How should I do this step by step
Below you will find links with the pictures of my device
Thanks a lot for all the help in advance
imageshack.com/i/poCkXJ5Xj
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imageshack.com/i/po3kmfpUj
imageshack.com/i/pm3jRPHSj