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Screwdriver set - Slotted and Phillips Combo ( 1 Each)
https://www.amazon.com/dp/B01MU17KJO
Tweezers
https://www.amazon.com/dp/B01MXYQ521
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This video details troubleshooting and replacing the sim / sd card reader pcb. If your sim card doesn't register the network or you can't access your sd card memory then replacing this pcb can fix your issue. Follow along with our detailed step by step instructions.