Partial Teardown of the SafePal S1
This article gives a quick look inside a SafePal S1 cryptocurrency hardware wallet (likely hardware revision V1.3
).
Contents
Consulting
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Teardown Impressions
![Frontside with LCD and buttons](/assets/images/resized/600/safepal_s1_front_1.jpg)
![Backside with QR code camera](/assets/images/resized/600/safepal_s1_back_1.jpg)
![The front cover is glued with double-sided tape and needs to be removed first](/assets/images/resized/600/safepal_s1_cover_1.jpg)
![Frontside without cover, next step is removing the four screws](/assets/images/resized/600/safepal_s1_front_2.jpg)
![Backside after removing screws and back cover.<br/>Clockwise: LCD backside, camera, space for the battery, USB-C connector, PCB RF-shield, custom <code>SE2010H</code> chip, side button](/assets/images/resized/600/safepal_s1_back_2.jpg)
Clockwise: LCD backside, camera, space for the battery, USB-C connector, PCB RF-shield, custom
SE2010H
chip, side button![LCD markings: <code>PSD130-27</code> which matches the <code>FPC-PSD130-27</code> silkscreen on the flex PCB cable.<br/>Component likely manufactured <code>2021-11-26</code>](/assets/images/resized/600/safepal_s1_lcd_1.jpg)
PSD130-27
which matches the FPC-PSD130-27
silkscreen on the flex PCB cable.Component likely manufactured
2021-11-26
![Internal 400mAh lithium battery](/assets/images/resized/600/safepal_s1_battery_1.jpg)
![View on the main PCB near the display connector](/assets/images/resized/600/safepal_s1_pcb_1.jpg)
Summary
This covers the basic components of the wallet, which helps understanding how it operates. The core electronics are located under a soldered RF shield and not yet visible, opening this up may follow at a later time. Notably, the wallet is still operational after the steps shown here, so it appears that there are no tamper detection sensors in this part of the hardware.