[Solution]iPhone 7 Plus Memory Upgrading On iOS 11 – 32 GB To 256 GB

[Amanda0820]

Attention:
1. The iPhone 7 Plus is perfectly compatible with the latest iOS11 after upgrading.
2. The upgrading process is operated with professional skills. Non-professionals are not recommended.
3. The only capacity has been changed during the upgrading process. The rest data has been 100% cloned.

upgrading process as following:
Step 1: Power on and run function test first.

Step 2: Go to Settings > General > About, check current storage capacity – 32GB.

Step 3: Power off and disassemble the phone. Remove the Aftermarket Display Assembly.

Step 4: Take out the logic board and then attach the logic board to PCB Holder. Stick high-temperature adhesive tape on chips around the flash memory to avoid high-temperature damage.

Step 5: Set Hot Air Gun at 300 degrees. **** and scrape off adhesive around the flash memory. Once done, **** with Hot Air Gun at 330 degrees and pry up the flash memory with sculpture knife.

Step 6: Scrape off adhesive residue with sculpture knife. Dip some Rosin with Soldering Iron to clean the bonding pad. After that, dip some Rosin with Goot Wick for secondary cleaning and clean again with PCB Cleaner.
Warning: There are three empty bonding pads(which will not affect the performance)

Step 7: Connect the PCIE NAND Flash Memory Chip Programmer with a computer and attach the 32GB flash memory to the programmer.

Step 8: Backup the 32GB flash memory data first. Click “Open Port” to load booting program and click “search info” to check flash memory information. Then click “backup kernel data” to backup flash memory data. Once done, click “Save” to save flash memory data and take out the 32GB flash memory.

Step 9: Attach a new 256 GB flash memory to the programmer to write in the previous backup data. Once embedded, the system begins to load booting program automatically. Click “write kernal data” and choose previously saved flash memory data and then write data.

Step 10: Click “search info” to check flash memory information and click “PCIE unlock wifi” to unbind WiFi. Once done, take out the 256 GB flash memory.

Step 11: Reball the data written 256 GB flash memory and then clean with PCB Cleaner.

Step 12: Apply some BGA Paste Flux to the bonding pad and align the 256 GB flash memory to the right place. Then Solder the 256 GB flash memory to the logic board with Hot Air Gun.

Step 13: Once the logic board is cooling enough, tear off the adhesive tape. Assemble the phone and restore iOS11.03 via iTunes.

Step 14: Set up the phone and run function test.

Step 15: Go to Settings> General > About and check storage capacity. The storage capacity has been upgraded to 256GB successfully. And the phone is perfectly compatible with the latest iOS11.0.3.

Related blog source: https://blog.rewatechnology.com/ipho...ory-upgrading/