Apple iPhone SE (3rd generation) will not charge or charges slowly

4.7-inch widescreen LCD with IPS technology, at 1334-by-750 at 326 ppi. That matters more than it sounds — a procedure written for a different size in the same line puts controls in different places, and gestures that depend on reach behave differently.

Lightning. A USB-C cable will not fit at all, which is the usual explanation when a charger that works on a newer iPhone in the same household does nothing here. Lightning cables also fail internally at the strain point, so a cable swap is the first test for slow or intermittent charging.

Touch ID — a fingerprint reader. General iPhone advice about lighting, angles and face coverings does not apply. What affects this model is moisture and the skin itself changing, and enrolling the same finger a second time helps more than repeated attempts against one reference.

The A15 Bionic. This determines how long the model keeps getting iOS updates, and it is the reason an app can drop support for this iPhone while running fine on a newer one — a support-window matter rather than a fault to troubleshoot.

64GB/128GB/256GB. The 64GB tier is the single most common cause of storage trouble on this model, and it is why an update can refuse with what looks like enough space free — installation needs room to unpack and stage as well as to store.

No. It is rated IP67, a lower rating than the IP68 models later in this line — splashes and brief incidental exposure rather than submersion. The rating also degrades with age and drops, and liquid damage is not covered.

Yes — Dual eSIM, with two active eSIMs and storage for eight or more profiles. Note that the default line for calls, for messages and for cellular data are three separate settings, and crossing them produces calls on one number while data or messages use another.

Wi-Fi 6 (802.11ax) with 2x2 MIMO. That is worth knowing before blaming the phone for slower Wi-Fi than a newer device on the same network — a router running a newer standard falls back to what the phone supports rather than refusing it, so the difference is specification rather than fault.

Bluetooth 5.0. Version affects range, reconnection behaviour and which accessory features are available. A newer accessory paired here operates at this version's capabilities rather than failing, which is regularly mistaken for a pairing fault when the accessory simply cannot do everything it does on a newer phone.

625 nits maximum brightness (typical). Brightness is among the largest single consumers of battery, so outdoor use at full brightness costs real runtime — and poor outdoor readability on this model is usually this figure rather than a display fault.

Apple rates it at up to 15 hours of video playback. Judge your runtime against that figure and your own history rather than against a different iPhone — the rating varies widely across this line.

4K video recording at 24, 25, 30 or 60 fps. Resolution and frame rate are the dominant factor in how fast video fills storage, and they push the phone hardest thermally — sustained high-frame-rate recording is the most common reason a camera stops mid-take.

Not meaningfully. This model uses an LCD panel, which backlights the whole screen regardless of what is displayed. Dark mode only saves real power on the OLED iPhones, where black pixels are switched off entirely.

The port, with a bright light. Compacted lint is the most common cause by a wide margin — every insertion presses it further in, so it accumulates invisibly over months and then presents suddenly as a port that will not hold a cable. A clean port shows the contacts at full depth.

Phone off, a wooden or plastic toothpick, gently, working the debris out rather than pushing it in. Never a metal pin — the contacts are fragile and bridging them is worse than the lint. Not compressed air forced into the port, and nothing liquid.

That is nearly always the cable failing internally at the strain point, or lint holding the connector off its full seat. Both are cheap to rule out: swap the cable first, then inspect the port. A genuinely damaged port is loose in every orientation with every cable.

Leave it on a known-good charger for at least half an hour before concluding anything. A deeply discharged battery has to trickle for a while before the phone can display anything at all, and judging it dead after two minutes is a common and expensive mistake.

Temperature. Both major platforms suspend charging outside a safe band and do not always tell you they have. A phone in a sunlit car, or outdoors in a hard frost, is outside that band — bring it to room temperature and it will resume.

The detection is deliberately conservative and can persist after the port feels dry to you. Leave it unplugged, port down, in moving air for several hours. Do not apply heat, which drives moisture inward, and do not use rice, which leaves dust in the port.

Check the adapter's output rating against what the phone supports. A low-output adapter, a laptop USB port or an older car charger supplies a fraction of what a modern phone expects, and the symptom is exactly this — it charges, just barely, and better with the screen off.

Take the case off and centre the phone on the pad. Coil alignment is tighter than it looks, and a thick case, a metal plate or a card in the case defeats it entirely. Working without the case is the finding.

Only after the cable and the port are excluded. A faster adapter cannot help a phone whose port is packed with lint or whose cable has failed internally, and those two account for most of these faults. Test the cheap things first.

That points at software rather than the hardware path — charge negotiation is software too. A force-restart with the charger connected is safe, fast, and is occasionally the entire fix.

Use one that meets the phone's specification, whether or not it is the original. What causes trouble is the opposite end of the range: very old adapters, unbranded ones with no stated output, and computer ports — all of which supply less than the phone expects.

Stop charging it immediately. A lifting back or screen means the battery is swelling, which is a stop condition regardless of how well the phone otherwise works. Do not compress it, do not puncture it, and do not leave it charging unattended.

No. It is scoped to A2595/A2782/A2783/A2784/A2785. Apple iPhone family; connector, modem, camera, biometric and iOS eligibility vary by exact model.

Record the complete model identifier, exact message or indicator, software/firmware where visible, the operating stage and what still works.

A reset can erase accounts, networks, maps, schedules or preferences without distinguishing not charging, slow charge. The ordered checks preserve that evidence.

Stop for heat, swelling, liquid, corrosion, melted insulation or bent contacts.