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5G/4G Wi-Fi Routers/MiFi
2024-06-09 09:11:22
no 4g signal for TL-MR6400
hi, I hold a 4g modem TP LINK model TL-MR6400, for more than one year I used it with different SIM cards and worked perfectly. All of a sudden the modem stopped working. it doesn't pick 3g or 4g signa