iphone 3g USB not detected..what solution sir? *** bless! |
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Charge battery externally 4.2V is the limit. Did it detect by PC,if yes try restore. |
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Maybe this is a bit off topic but I have some questions about tools to use. 1. When buying a multimeter, what do I have to look for? What measure areas are needed? 2. Wites, you refered to a service dc power, can you please explain or link to what this is? 3. For test what components on the logic board that getting hot, is an Infrared thermometer good for this? 4. For doing jumpers, what wire do you use? And is it possible to just use tin when it's just between two points? Thank you in advance! |
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I will check. i have the impression the 4.2 Volts is not there, since the battery voltage is not increasing. I have measured the voltages while no display present. Unfortunately no detection by the PC. As soon as that works i will restore the phone. |
3GS 16GB Dead + USB Not working 1 Attachment(s) I got this 3gs but its dead and would not power on .. i replace the charged battery but no result .... 1st problem was that its not snyc with pc or not charged ... no usb dock working .. i give for repaired and after that they remove 1 component and not its totally dead not turning on any solution for this Any jumper solution for this |
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http://img593.imageshack.us/img593/1...2011038.th.jpg |
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2.Something like this Guangzhou XinYue Co.Ltd 3.Don't know about infrared thermometer try it,i check with my lips for heating components. 4.To make jumpers use thin wire from some damaged speaker/earpiece. |
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i know CC CV charging for lithium batteries. With the max voltage set to 4.2Volts |
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i have iphone4 charging ok but when i connect it to pc it says usb malfunction when i saw inside usb connecter of phone there is some damge in right side of jack one or two rows are damgae and wire are missing please any body tell me how i repair it and what is it solution thanks in advance |
3GS 16GB Dead + USB Not working no phone does not turning on .. even if i assume that the jumper is correct... i used fully charged battery ... but no result .... still in dead condition i attach the whole main board pic see if you can see something http://img848.imageshack.us/img848/7...2011044.th.jpg Uploaded with ImageShack.us http://img848.imageshack.us/img848/7872/25102011044.jpg ImageShack® - Online Photo and Video Hosting |
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Update on this phone: Unit is booting when the charger is connected. but after that is restarts all the time. It looks like the power button is not detected. Although i can get into DFU mode ???? Trying to restore the unit goes trough a restart and then it hangs in restart loops again. So power button is detected to put the phone into DFU mode. But not detected to power-on the phone . |
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