PP_VDD_Main Short to Ground 0 ohms resistance
I have a 0 ohm resistance short to ground on VDD_main. Because there is no resistance I can’t find the cause of the short with my heat camera. There are only 2 things that come to mind.
# A physical short has been caused by some kind of debris or misplacement which I just can’t find even with cleaning and searching thoroughly, or
- A surface mount component has failed causing a 0 ohm short to ground. Is this likely and what type of component could cause this?
crwdns2934109:0crwdne2934109:0
crwdns2944067:05crwdne2944067:0
I’ve injected current to different points. With 0 resistance there is just no energy loss to detect heat :(
crwdns2934271:0crwdnd2934271:0 Zero Alpha crwdne2934271:0
Have you removed the shields? What model board is it Intel or Qcom? Have you tried freeze spray instead of your thermal cam? Was the board water damaged and maybe put into a microwave?
crwdns2934271:0crwdnd2934271:0 Chris Stables crwdne2934271:0
@imicrosoldering Intel board with all shields removed. Phone failed on Q2101. I removed it but can't solve VDD_main short now
crwdns2934271:0crwdnd2934271:0 Zero Alpha crwdne2934271:0
If Q2101 failed you should defiantly remove Tigris. It has probably been damaged and most likely the cause of the short.
crwdns2934271:0crwdnd2934271:0 Chris Stables crwdne2934271:0
@imicrosoldering Yep, One step ahead of you. I've removed Tigris also. Still 0 ohm resistance short to ground
crwdns2934271:0crwdnd2934271:0 Zero Alpha crwdne2934271:0