Uploaded December 2015 | Updated September 2026, 4 hours ago
WARNING : This video involves unsoldering logicboard components. This require the use of appropriate tools with an extreme precision. A single small mistake and the whole logicboard could be completely broken.
By watching this video, you agree that I'm not responsible of what might happen with the use of informations provided. Do it at your own risks.
Few months ago, I bought an iPad 2nd 64 GB with cellular (K94AP) on local classifieds. It was listed as broken and the seller told me that the device had a restore problem. It doesn't boot in normal mode, always in DFU mode. So, iTunes always ask to restore it. I tried to restore the device. It uploads iBSS, then iBEC and the device screen lights up. The restore ramdisk is uploaded, the device tree and the kernel cache too. The iPad boot the restore ramdisk, then the Apple logo with the progress bar appear on the screen. The progress bar doesn't fill and iTunes says "Waiting for iPad" indefinitely.
After many tests, it's about a logicboard hardware problem. After asking few people and reading a lot on Internet about similar issues, I concluded that the broken part could be the power supply IC chip.
I disassembled the iPad to remove the logicboard. Then, I put aluminium to protect other components and I used hot air gun to unsolder the chip.
WARNING : This video involves unsoldering logicboard components. This require the use of appropriate tools with an extreme precision. A single small mistake and the whole logicboard could be completely broken.
By watching this video, you agree that I'm not responsible of what might happen with the use of informations provided. Do it at your own risks.
Few months ago, I bought an iPad 2nd 64 GB with cellular (K94AP) on local classifieds. It was listed as broken and the seller told me that the device had a restore problem. It doesn't boot in normal mode, always in DFU mode. So, iTunes always ask to restore it. I tried to restore the device. It uploads iBSS, then iBEC and the device screen lights up. The restore ramdisk is uploaded, the device tree and the kernel cache too. The iPad boot the restore ramdisk, then the Apple logo with the progress bar appear on the screen. The progress bar doesn't fill and iTunes says "Waiting for iPad" indefinitely.
After many tests, it's about a logicboard hardware problem. After asking few people and reading a lot on Internet about similar issues, I concluded that the broken part could be the power supply IC chip.
I disassembled the iPad to remove the logicboard. Then, I put aluminium to protect other components and I used hot air gun to unsolder the chip.
