The IBM x3550 M2 was powered off within 10 seconds of startup, and the fault indicator showed BRD. It was caused by the corrosion of two resistors and one capacitor at the eighth pin of max1917 near the fan port. After replacement, it was turned on normally.
iPhone 7 Update System reported an error of 4013. After detection, it was found that it was caused by the power supply S5 Baseband Short circuit. A 2.2k resistance was connected from 1.8V Baseband of RAM to S5 Baseband, and Update System passed smoothly.
Gigabyte ga-h81m-d2 motherboard has no pwrok, which leads to no reset. Replace Capacitor of corroded by moisture, and the boot is normal.
HP shadow Genie 4 tpn-q211 laptop fell Won't Turn On, replace the up1666q chip, repair the fault.
iPhone 6 is not charged. It is found that the USB chip pad break off is serious, and the fault is repaired after patching.
Apple MacBook Air a1465 notebook no booting, replace the damaged chip after the fault repair.
iPhone 7 can't find the recording equipment, and the fault was fixed after replacing coder IC.
TR-G150T notebook no booting, curettage and healing,Jump wire successfully repaired.
