Uploaded April 2026 | Updated September 2026, 2 weeks ago
How to replace the iPhone 17 Pro Max logic board and fix boot loop, Apple logo freeze, random restarts, and motherboard-related issues.
Buy tools and parts on AMAZON:
Screwdriver Set: hfixt.com/spro
Pro Toolkit: hfixt.com/tool
Magnetic Mat: hfixt.com/mat
Tweezers: hfixt.com/tzrs
Adhesive tape: amzn.to/3N3ey3E
AliExpress:
Adhesive tape: https://s.click.aliexpress.com/e/_c3zr7kUX
Screwdriver Set: hfixt.com/alis
Opening Tool Kit: hfixt.com/alit
Magnetic Mat: hfixt.com/amat
Tweezers set: hfixt.com/altz
📌*Useful links*
Best Screwdriver Set: youtu.be/fdtNem4rDDM
Repair Tools & Safety Tips: youtu.be/Sp7PhrKV-vQ
More DIY repair guides: how-fixit.com
Genuine Apple parts: selfservicerepair.com
📱Follow us for more tech tips and guides!
TikTok: tiktok.com/@howfixit
Instagram: instagram.com/howfixit
Facebook: facebook.com/HowFixit
X: https://x.com/HowFixit
*Description*
If your iPhone 17 Pro Max is stuck on the Apple logo, trapped in a boot loop, randomly restarting, or has Wi-Fi and Bluetooth greyed out, this step-by-step guide will show you how to replace the logic board, also called the motherboard. This repair can help solve major board-related issues after a drop, liquid exposure, or failed repair.
In this tutorial, I’ll show you how to safely open the iPhone 17 Pro Max, disconnect the display, remove the cooling plate, front camera, rear camera module, earpiece speaker, and all flex cables, then remove and replace the logic board. You’ll also learn how to test the phone before sealing it, calibrate the new board using Repair Assistant, and restore water resistance with new adhesive tape.
HowFixit – DIY electronics repair guides.
Timecodes
00:00 Intro to Logic Board Replacement Guide
00:27 Required tools and repair notes
01:15 Remove bottom Pentalobe screws
01:23 Heat the display adhesive
01:50 Lift the screen and start opening
02:23 Important warning: do not pry deeper than 3 mm
02:53 Release top display hinges
03:45 Open the display to the left
03:53 Disconnect display and front sensor cables
04:18 Remove cooling plate
05:05 Remove front camera module
05:19 Disconnect and remove rear cameras
05:54 Remove earpiece speaker
06:11 Disconnect remaining logic board cables
06:42 Remove iPhone 17 Pro Max logic board
06:58 Common symptoms fixed by motherboard replacement
07:23 Install the new logic board
07:35 Reconnect flex cables and secure brackets
08:51 Reinstall speaker
09:13 Reinstall rear camera module
10:11 Reinstall front camera module
10:49 Reconnect display for test boot
11:09 Testing the iPhone before final assembly
11:14 Repair Assistant calibration
11:24 Check cellular, Wi-Fi, Bluetooth, Face ID, cameras
11:47 Remove old waterproof adhesive
12:23 Clean frame and display with isopropyl alcohol
13:55 Apply new waterproof sealing tape
14:52 Reconnect display and close the phone
15:25 Final assembly and outro
🌟FAQ:
❓Question: What does replacing the iPhone 17 Pro Max logic board fix?
✔️Answer: It can fix major hardware-related issues such as boot loop, Apple logo freeze, no power, random restarts, panic log crashes, and greyed-out Wi-Fi or Bluetooth.
❓Question: Is the logic board the same as the motherboard?
✔️Answer: Yes. In iPhone repair, logic board and motherboard usually refer to the same main board.
❓Question: Can a new logic board fix an iPhone stuck on the Apple logo?
✔️Answer: Yes, if the issue is caused by board failure rather than a bad battery, damaged flex cable, or software corruption.
❓Question: Do I need Repair Assistant after replacing the logic board?
✔️Answer: Yes. After the first boot, you should use Repair Assistant in Parts & Service History to calibrate the new board.
AFFILIATE PROGRAM
As an Amazon Associate, I earn from qualifying purchases.
#iphone17promax #iphonerepair #diy #howfixit
How to replace the iPhone 17 Pro Max logic board and fix boot loop, Apple logo freeze, random restarts, and motherboard-related issues.
Buy tools and parts on AMAZON:
Screwdriver Set: hfixt.com/spro
Pro Toolkit: hfixt.com/tool
Magnetic Mat: hfixt.com/mat
Tweezers: hfixt.com/tzrs
Adhesive tape: amzn.to/3N3ey3E
AliExpress:
Adhesive tape: https://s.click.aliexpress.com/e/_c3zr7kUX
Screwdriver Set: hfixt.com/alis
Opening Tool Kit: hfixt.com/alit
Magnetic Mat: hfixt.com/amat
Tweezers set: hfixt.com/altz
📌*Useful links*
Best Screwdriver Set: youtu.be/fdtNem4rDDM
Repair Tools & Safety Tips: youtu.be/Sp7PhrKV-vQ
More DIY repair guides: how-fixit.com
Genuine Apple parts: selfservicerepair.com
📱Follow us for more tech tips and guides!
TikTok: tiktok.com/@howfixit
Instagram: instagram.com/howfixit
Facebook: facebook.com/HowFixit
X: https://x.com/HowFixit
*Description*
If your iPhone 17 Pro Max is stuck on the Apple logo, trapped in a boot loop, randomly restarting, or has Wi-Fi and Bluetooth greyed out, this step-by-step guide will show you how to replace the logic board, also called the motherboard. This repair can help solve major board-related issues after a drop, liquid exposure, or failed repair.
In this tutorial, I’ll show you how to safely open the iPhone 17 Pro Max, disconnect the display, remove the cooling plate, front camera, rear camera module, earpiece speaker, and all flex cables, then remove and replace the logic board. You’ll also learn how to test the phone before sealing it, calibrate the new board using Repair Assistant, and restore water resistance with new adhesive tape.
HowFixit – DIY electronics repair guides.
Timecodes
00:00 Intro to Logic Board Replacement Guide
00:27 Required tools and repair notes
01:15 Remove bottom Pentalobe screws
01:23 Heat the display adhesive
01:50 Lift the screen and start opening
02:23 Important warning: do not pry deeper than 3 mm
02:53 Release top display hinges
03:45 Open the display to the left
03:53 Disconnect display and front sensor cables
04:18 Remove cooling plate
05:05 Remove front camera module
05:19 Disconnect and remove rear cameras
05:54 Remove earpiece speaker
06:11 Disconnect remaining logic board cables
06:42 Remove iPhone 17 Pro Max logic board
06:58 Common symptoms fixed by motherboard replacement
07:23 Install the new logic board
07:35 Reconnect flex cables and secure brackets
08:51 Reinstall speaker
09:13 Reinstall rear camera module
10:11 Reinstall front camera module
10:49 Reconnect display for test boot
11:09 Testing the iPhone before final assembly
11:14 Repair Assistant calibration
11:24 Check cellular, Wi-Fi, Bluetooth, Face ID, cameras
11:47 Remove old waterproof adhesive
12:23 Clean frame and display with isopropyl alcohol
13:55 Apply new waterproof sealing tape
14:52 Reconnect display and close the phone
15:25 Final assembly and outro
🌟FAQ:
❓Question: What does replacing the iPhone 17 Pro Max logic board fix?
✔️Answer: It can fix major hardware-related issues such as boot loop, Apple logo freeze, no power, random restarts, panic log crashes, and greyed-out Wi-Fi or Bluetooth.
❓Question: Is the logic board the same as the motherboard?
✔️Answer: Yes. In iPhone repair, logic board and motherboard usually refer to the same main board.
❓Question: Can a new logic board fix an iPhone stuck on the Apple logo?
✔️Answer: Yes, if the issue is caused by board failure rather than a bad battery, damaged flex cable, or software corruption.
❓Question: Do I need Repair Assistant after replacing the logic board?
✔️Answer: Yes. After the first boot, you should use Repair Assistant in Parts & Service History to calibrate the new board.
AFFILIATE PROGRAM
As an Amazon Associate, I earn from qualifying purchases.
#iphone17promax #iphonerepair #diy #howfixit
