it maybe concern to the USB charger board, it is easy damage during serveral time insert. you can check detail for that or get a replacement for that to try. Thanks Jack.

Hi Thomas i think it is better you can go to a local repaire service guy to identify the root caused: Battery issue/power IC issue/CPU Issue/USB Board. 1. battery issue, it is easy to replace with a battery and fixed it. 2. if it is concern to motherboard, i think it is not easy for you identify it, it maybe need replace with a motherboard. 3. if it is USB Board issue, it will be easy to buy a USB Board. Thanks Jack.

the battery is not easy damage during disassemble, it is better you have warm the battery body a little bit as the glue paste the battery to house body. if the battery is not work at all, you can find a battery for replacement. Thanks Jack.

Hi friends I think you will need to have a new lcd screen: Touch screen+LCD replacement. also you need have expenexice for phone assemble Thanks Jack.

Hi The Y100 and Y100 PLUS is common lcd screen, it is better you can buy the lcd screen assemble and it is better you can have experenice for phone disassemble and assemble. Thanks Jack.

Hi friends these maybe three factor; 1. Phone USB connector and Power charger USB connector; 2. Power IC on motherboard. 3. the phone battery issue. you can check it step by step. Thanks Jack.

Hi we can provide the lenovo battery replacement. my skype is melodyliyu666 Thanks Jack.

Hi Please hlep to check if these have one GSM Signal antenna has been assemble well. Thanks Jack.