Chris Stables

Any idea where I could purchase a QFN8 to DIP8 Adapter that will fit a bios chip off the 820 00875 board. The only one I...

I got sent a mac which had the U5860 temp sensor torn off along with all the pads on the board. It would take ages to boot...

Would someone be able to tell me the orientation position of U5860 on the 820-00239 logic board. I can only make out a...

It seems you have ruled out a parts problem so it is defiantly software or board issue but I would be leaning more toward software. ·         When did this problem start happening? ·         Is it the original taptic? It seems that the taptic engine streams information to the software database Known as (serialisation) I would have thought performing a restore would have flushed the database. I would try a DFU restore and see if that fixes the problem. Just out of curiosity was this board manufactured by MRS? It will be stamped on the arm of the logic board.

First make absolutely certain that flex cable is seated properly. Use the ifixit spudger that came with your tool kit to firmly press it down.  If it is still looping you may have a small tear in the flex cable from the transfer.

I thought someone had answered this. Why is my WI-FI greyed out? 1.       No power getting to the Wi-Fi chip 2.       Oxidised pads under the WI-FI chip 3.       Brocken trace under WI-FI chip 4.       Damaged WI-FI chip 5.       WI-FI chip not communicating with the CPU If you have blue tooth you can rule out number 1.

This sounds like a battery problem if the phone has been sitting around for ages. The charge port should be fine if it is detected by iTunes. Install a new battery and there’s a good chance it will boot up or can be restored by iTunes.

The tristar IC gives the signal to the phone to charge if it is faulty the phone wiil not charge. If your phone isn’t boot looping and you always have a spare charged battery you could keep swapping them out and it should keep working but there is a chance it will start boot looping if the phone can’t read the battery data.

If it has been liquid damaged the speaker amp ic would be the culprit. U1601 will have to be replaced.

I have only had to clean one. I used a Q-tip with isopropyl alcohol never ran into any problems.

This sounds like a backlight issue. Try shinning a torch on the screen and see if it has image. ITunes want recognise it if it is passcode locked, unless it has been connected to the pc recently. If it is the backlight it will need to be repaired by a board level repairer as the backlight IC is close to the CPU Usually they will replace the IC, coil and diode and maybe a fuse or capacitor if they have blown.

Not sure exactly what you are asking. If you put your phone into DFU mode you will be able to restore it. Note all data will be lost.

Greyed out Wi-Fi on the iPhone 6 after a drop would defiantly be the Wi-Fi chip. This repair would require microsoldering. The repair cost would be around the price of another iPhone 6.