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Resetting the GSM Module PGSM4 Light to Factory Settings 1. By special command GSM module versions 12.15, 12.15b, 12.16, 12.16b (version can be requested by the command VERSION?) support the command for resetting the module to the factory settings: HEATER OR The receiving and launching of the command are not confirmed by the module.
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· Close the XS9 pins 1 and 2 on PCB. Use housing’s screw or screwdriver from the set · Push on battery’s connector thus connecting the battery to second terminal. The LED will go on for 2 seconds and then should go off. Keep on holding the battery connected for 15 seconds more.
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· Open the XS9 pins 1 and 2. With SIM installed the LED should flash by 3 green flashes in series.
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