Try geek squad
Don't know that they do repair ... maybe with Geek Squad. I just replaced the battery on my Galaxy Gear S3 Frontier. It's not difficult at all. Took maybe 15 minutes. This kit has everything you need. Just go slow and steady. https://www.amazon.com/dp/B0819KSZHJ/ref=cm_sw_r_em_apa_i_1B97Eb3Z8NARE
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