Here is a link to PCBWay where you can order high-quality PCBs for cheap:
https://pcbway.com/g/6KSGea

In this video, I attempt the 16GB RAM upgrade on the Raspberry Pi 4 Model B

Here is the link to my Patreon if you want to support what I am doing:
https://www.patreon.com/MadEDoctor

Here is a link to the Jeff Geerling channel:
https://www.youtube.com/@JeffGeerling

If you need a repair or upgrade of a device, please follow this link: https://rb.gy/v6izn

Below are the chip codes and links for each one where they can be purchased.
Micron D9WHZ | MT53D512M32D2DS-053 WT:D – 2GB Chip : https://rb.gy/1akj
Micron D9WHV | MT53D1024M32D4DT-053 WT:D – 4GB Chip : https://rb.gy/1q6d
Micron D9ZCL | MT53E2G32D4NQ-046 WT:A – 8GB Chip : https://rb.gy/agrf
Micron D8CBG | MT53E4G32D8CY-046 WT:C – 16GB Chip : https://rb.gy/f7v5d

These are the tools I am using:
Microscope – Amscope SM-4NTP with x0.5 Barlow lens
Amscope: https://amscope.com/products/c-sm-4nt…
Amazon: https://www.shorturl.at/fgy56

SM05 – 0.5x Barlow lens:
Amscope: https://amscope.com/products/sm05
Amazon: https://www.shorturl.at/lvCGZ

Soldering station – JCID AIXUN T3B with T210 Handle:
Aliexpress: https://shorturl.at/zpUcy

Hot air station – ATTEN ST-862D:
Aliexpress: https://shorturl.at/tegl8 | Amazon: https://www.shorturl.at/IOTV1

Tweezers:
Aliexpress: https://rb.gy/ycgl
Aliexpress: https://rb.gy/3gwd

Rosin atomizer:
Aliexpress: https://rb.gy/ce4x

Board holder – T26:
Aliexpress: https://rb.gy/k2pv

Fume extractor – Aliexpress: https://rb.gy/83sl

Flux – Aliexpress: https://rb.gy/j9xb6e

Solder wick – Aliexpress: https://rb.gy/ykt8y

Different stencils I use:
Aliexpress: https://rb.gy/mqewwu
Aliexpress: https://rb.gy/nvzfvs
Aliexpress: https://rb.gy/axg9ut
Aliexpress: https://rb.gy/dyhkj2

Email for contacts: [email protected]

Please take the opportunity to connect and share this video with your friends and family if you find it useful.