When a phone will not accept the charger or charges only intermittently, the charging board is often to blame — a small daughterboard carrying the charging port, the microphone and often the SIM reader as well. The selection consists almost entirely of Samsung boards, from the A series up to the S22 and Z Fold 4. Check the model code, for example A325F or G781F, carefully, because the 4G and 5G versions use different boards.
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When a phone will not accept the charger or charges only intermittently, the charging board is often to blame — a small daughterboard carrying the charging port, the microphone and often the SIM reader as well. The selection consists almost entirely of Samsung boards, from the A series up to the S22 and Z Fold 4. Check the model code, for example A325F or G781F, carefully, because the 4G and 5G versions use different boards.