This iPhone 11 Pro came in recovery mode. Customer had already tried to restore it & was getting error 4041.
I had never seen this before, but was thinking maybe NAND due to the error being very close to Error 4014 & sometimes Apple changes things around with new iOS versions (16 in this case).
I tried a restore with 3u and failed at 19%, while the device would show a frozen spinning wheel on the screen, further validating my guess that it's NAND.
Replaced the 64GB NAND with a 128GB, but sadly, same results. It did not solve it.
I decided to check DCPS consumption & noticed during the restore, it was pulling +500mA, even after it had failed. This didn't look normal.
Check with thermal cam, I found PP_AVE_S1 had a short to ground. Wasn't sure what it was supposed to be, so I checked on a donor & it was .300 something, so definitely shorted.
Injecting 1V/1A to this line & found PMIC would heat up. Pulled PMIC & sure enough, short was cleared.
Then it turns out, the replacement PMIC, did not match the part# from the original. So the vendor who sold me a PMIC for iPhone 11, 11 Pro and 11 Pro max, was wrong.
343S00354 is for iPhone 11
343S00355 is for iPhone 11 Pro & Pro Max.
So always check the part# on the IC. Never trust the vendor's labels.
Anyway, replaced PMIC & the device failed at 12% on iTunes flash 😅.
Decided to try again & it flashed successfully! But no IMEI, as I was doing top board only.
Re-sandwiched it & restored one more time & we're fixed!
Too bad I don't have the iCloud info yet, so waiting on that. But all indicators point to a fully working phone
The lesson here is.. check DCPS (Dt880) consumption for any abnormal current draw, before jumping straight to NAND 😂
If you have a Seek Thermal Cam, you're missing out if you don't have a VCC Seek Stand: https://www.vccboardrepairs.com/buy-seek-stand
Injured Gadgets just got these back in stock, so get them while you can!
It can take us a while to build these out sometimes, so they're sometimes out of stock for a while, but we're working towards always having inventory ready to build more as they sell out.
This stand makes using a thermal cam so easy. So much better than any other thermal solution on the market.
It allows you to get real close up (using my Macro Lens), and easily find where the short is coming from.
Plus it's hard free, so you can have your hands free to try to boot the device from DCPS, while having an image that is in focus & not moving around.
You can even record a video through the app, while you inject voltage into the short, so you can go back & see exactly which component was it that was heating up.
Save yourself lots of time by getting a Seek Cam, Stand & Macro Lens! ...
Anyone who is doing game console repairs, knows how many screws you need to remove to access the motherboard.
Especially the PS5, with the 5,000 screws or so.
If you don't already have an electric screwdriver, GET ONE ASAP.
🌟 Cordless Screwdriver with T9 Bit: https://amzn.to/3E5duCj
🌟Extended T9 Bit: https://amzn.to/3c4YJac
It's rechargeable through micro USB and allows you to easily swap the tips out. You can also fold it to be straight or L shape.
Let me know below if you are already using an electric screwdriver 👇👇
I’m thinking about adding another perk for the paid members here in the community: private repair livestreams where we work through repairs and troubleshooting together.
The idea would be to do members-only livestreams where I could:
• Work on real board-level repairs live
• Walk through my troubleshooting process
• Interpret panic logs together
• Answer repair questions from members
• Talk through CPU swaps, tools, and techniques
• Explain why certain failures happen
It would basically be a more interactive way to learn, where you could ask questions while the repair is happening.
Before I start scheduling these, I want to gauge interest.
If you are a free follower:
👍 Please like this post if livestreams like this would interest you.
If you are a paid member:
💬 Please comment below if you'd like to see this and how often you'd want them (weekly, monthly, etc.).
If enough people are interested, I’ll start planning the first livestream. 🔧📱
If you didn’t know, this Locals community works more like a repair forum than just a feed.
So if you're stuck on a board repair, data recovery case, weird boot issue, or anything microsoldering related, make a post and ask your question here.
There are a lot of talented techs in this community, and I’ll jump in whenever I can to help point you in the right direction.
A couple quick notes:
• Paying members can create posts and comment
• Followers can still see everything and like posts, but commenting is limited to members
So if you want to ask questions, participate in discussions, and learn from other techs, becoming a member unlocks that.
My goal with this community is to build a place where repair techs can share knowledge, troubleshoot tough cases, and help each other improve.
So if you're already a member, don’t be shy. Post your repair questions, photos, schematics, or weird issues you're running into.
Let’s get some discussions going 👇
Just uploaded a new repair video on a Samsung S10e bootloop case where the customer needed the data recovered.
The phone would either:
• bootloop on the Samsung logo
• occasionally reach the home screen for a second
• then shut off and start looping again
Basic fixes obviously weren’t going to solve this one. The issue ended up being weak solder joints under the CPU / RAM stack, which seems to be fairly common on these.
For this repair I had to:
• remove the shield
• separate the RAM from the CPU
• clean the underfill
• reball both chips
• reinstall and test on the bench supply
Once everything was back on the board, the phone booted normally and we were able to recover the customer’s data.
Curious how many of you have seen CPU / RAM related bootloops on the S10 series?
Watch it here:
