VCC Board Repairs
Education • Science & Tech
The goal is to share solutions & techniques for microsoldering & data recovery repairs. I'll cover mostly iPhone & iPad motherboard repairs.
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Tonight, got an iPhone 11 Pro Max that came in with No WiFi and would not activate.

So basically, it was stuck on the Hello screen.

When you click the "i" it would only show the SN. No IMEI.
When I tried to activate via 3U Tools, it would fail
3u tools will show N/A in the IMEI field.

So clearly, this has WiFi and Baseband issues.

For 11 Pro Max (and similar models), i followed these steps to resolve it

1. Split the sandwich
2. Cleaned the flux off the pads
3. tested in the iSocket Jig
4. I saw WiFi was working now
5. IMEI was still missing & phone will not activate via 3u tools
This is because when you restore an iPhone with baseband problems, you have to restore it again once you fix the board issue.
6. So i restored it
7. IMEI was now present in the "info" screen and 3u tools
8. The phone activated
9. The Control Panel showed "No SIM" which means baseband is good and wifi/bt buttons were not grayed out, so they're working too
10. I was doing all this testing in the jig, so we know the top and bottom boards are fine
11. So now to "reball" the sandwich
12. But, no need. If you clean split, you can just re-add fresh flux and squish the board back down together once the bottom heater has flowed the solder.
13. Put the board back into the housing & now it's fully functional!

This whole process only took about 30 min (or less).

Let me know if you found this helpful or if you have any questions as to why I did what I did.

🙏

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What else you may like…
Videos
Posts
Which Thermal Cam Do You Have?

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! ...

00:00:12
If you do consoles, you need this.

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 👇👇

00:00:03
S23 Ultra FPC Disaster… DIY Gone Wrong (new video!)

Had an S23 Ultra come in for a simple display connector issue… but it turned into a mess after someone tried to fix it themselves.

Glue all over the connector, uneven solder, no flux used, pads almost compromised… the whole thing was shifted and barely hanging on.

This is one of those repairs that looks easy on YouTube, but in reality takes a lot of control, the right temps, and proper prep.

Ended up doing a full FPC replacement and got it fully working again.

Curious how you guys approach these:

Do you pre-tin connectors or go straight install?
Hot air only or hybrid with iron touch-up?
What temps / airflow are you running for these Samsung FPCs?

Also… how often are you seeing DIY attempts make things worse lately?

Full video here:

iPhone 11 Pro Max No Power - Classic NAND Rail Cap Short (Thermal Cam Find)

Had an iPhone 11 Pro Max come in for no power. Device was in excellent condition, no cracks, no signs of impact. Customer said it just randomly died.

Honestly, this is one of those classic faults I used to see all the time, and still enjoy because of how straightforward it is once you know what to look for.

First step, as always with no power, was checking current draw on the DC power supply.

Boot behavior:
Current was jumping all over the place. It would bounce from 0 → ~500mA → 0 → a few mA → back up again. Just constantly pulsing with no stable draw.

That kind of behavior usually points to a short on a NAND cap

So I threw it under the thermal cam (Seek Compact Pro). Timing is key here, because you only see heat when current is actually being drawn. When it drops to zero, there’s no heat signature.

Caught it at the right moment and found a hotspot on the board.

Under the microscope, the area showed a slightly darkened cap under the underfill, classic sign.

Ended up being a shorted PP3V0 cap ...

iPhone 16 Pro Max – Hidden Board Crack (No Power → Data Recovery Case)

This one came in as a no power data recovery job. Customer said it died overnight, no prior damage, and Apple told them the board was done and data wasn’t recoverable.

Physically, the phone looks clean. No bends, no cracks, nothing obvious. I’m honestly not sure how the board ended up cracked, there’s no visible external damage that would typically cause this.

Here’s what I found 👇

Initial testing:

  • Able to boot with minimal setup (board + screen + battery + charge port)
  • Stuck at 5V, very low current draw (not charging)
  • No touch response
  • Boot current draw looked normal

Direction I took:

  • Focused on the touch issue first (since no touch = no data access)
  • Using an LCD aftermarket screen:
    • Got image
    • Still no touch
  • OEM/OLED behavior pointed toward a board-level display/touch issue

What I found:

  • While removing the shield over the display IC… found a board crack
  • Several display connector pins reading OL (open line)
  • Traces route from connector → PMIC / display IC ...
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