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Modern smartphones support fast charging protocols — Qualcomm Quick Charge, Samsung Adaptive Fast Charging, VOOC, SuperDart, and others — that can charge a depleted battery to 50% or more in under thirty minutes when using the correct charger and cable. When fast charging stops working and the phone reverts to slow, standard charging speeds despite being connected to the original fast charger, something in the fast charging system has failed. This is a repair that restores a convenience many users consider essential to their daily routine.
Fast charging relies on a handshake between the charger and the phone — the charger identifies itself using the supported charging protocol, and the phone's charging IC responds by requesting the elevated voltage and current that fast charging delivers. If any part of this handshake fails — due to a faulty charging port with damaged pins preventing correct signal communication, a damaged charging cable that cannot carry the protocol signals, a failed charging IC that cannot negotiate the elevated power delivery, or a software fault that has disabled the fast charging negotiation — the phone defaults to standard charging speeds.
Before any hardware work is carried out, Prologic Technologies on Luthuli Avenue will test the charger and cable independently to confirm they are functioning correctly, and check software settings to ensure fast charging has not been disabled. Many users discover that a software update has inadvertently toggled fast charging off in the battery settings.
For genuine hardware fast charging faults, the team will inspect the charging port for pin damage, test the charging IC behaviour under load, and carry out the appropriate repair — port cleaning, port replacement, or IC-level repair — to restore full fast charging capability.
Luthuli Avenue, Nairobi CBD 0723 763 173
