U2 chip changing unsucessfull

Hi everybody!!!

I had charging breakdown on my iPhone 5C. I decided to change the U2 chip because it was said that regularly faulty. I ordered few to the Chinese, desolder the old one with hot air under a x10 magnifying microscope than resolder a new one. It looks nice Under the micro.... but it does not work.

I removed accidently two close very small capacitors named C501 on the schematics. The phone is not recognized by iTunes and the voltage on the battery connector is unstable: 4,36V then 2,... then 1,5.. I tried to resolder the very tiny capacitors but it is very uneasy and I doubt that they are the cause of the malfunction......

Any advice or remark is welcome......... Thanks

Here are the microscopic view of the U2 changed