Samsung Galaxy A31 Charging Port Repair Vienna
Your Galaxy A31 only charges when the cable lies in a certain position? The charging port is worn out, dust sits deep in the USB-C 2.0 port or a pin is bent. Reparo replaces the charging port in Vienna – 49 € fixed price with a new USB-C 2.0 port, 6 months warranty. 15W fast charging and data transfer work again afterwards without wiggling. Usually done in 30–45 minutes, pickup service Vienna or send-in from anywhere in Austria.
Galaxy A31 charging port price at a glance
Charging port replacement
Fixed price complete incl. installation
- Certified USB-C 2.0 replacement flex
- 15W fast charging fully functional again
- Calibration of charge detection
- 6 months warranty on flex and installation
Diagnostic check 25 EUR, waived on repair. Pickup service Vienna included.
Typical charging port problems on the Galaxy A31
- The charging cable keeps slipping out of the USB-C 2.0 port on the Galaxy A31 – the pins no longer have a firm grip
- Your Galaxy A31 does not detect the charging cable – no charge icon, no signal in the status bar
- Fast charging on the Galaxy A31 works only sporadically – sometimes 15W, then nothing again
- Data transfer on the Galaxy A31 via USB cable no longer works – the PC does not recognize the device
- Your Galaxy A31 has visible oxidation traces in the USB-C 2.0 port – greenish or white deposits on the pins
- Your Galaxy A31 reports 'liquid detected' even though no water touched it – corrosion or a faulty sensor
- After a short circuit in the port the Galaxy A31 occasionally reports system restarts when plugging in – the result of a faulty USB controller in the flex
The Galaxy A31 from the Samsung A-series uses a USB-C 2.0 port – ruggedly built, but after 6 years of daily use you notice mechanical wear. The USB-C 2.0 connector delivers 15W charging power and transfers data at up to 480 Mbps – the pins are mounted just as mechanically as on 3.x ports. The port is especially sensitive with frequent plugging and unplugging in trouser pockets, where dust and lint block the deep contacts. See also our Galaxy A31 repair overview with all available services.
How does the Galaxy A31 charging port replacement work?
- Intake check and pin analysis
Under the microscope we check the USB-C 2.0 port of the Galaxy A31 for bent pins, foreign objects, oxidation and wear traces. With water contact, an additional pad check on the mainboard, so that we fix not just a symptom but the cause.
- Remove the back cover
On the Galaxy A31 we loosen the glued back cover with controlled heat (approx. 65 °C) and iFixit-compatible suction cups. The adhesive film on the frame is removed carefully so it can be replaced during reassembly.
- Disconnect the battery – safety first
Before anything happens on the charging circuit of the Galaxy A31, the battery connector is disconnected from the mainboard. This prevents short circuits on the USB-C 2.0 controller and protects the flash storage from unforeseen voltage spikes.
- Remove the old USB-C 2.0 flex in a controlled way
The charging port unit on the Galaxy A31 is fixed to the mainboard via screws and a zero-insertion-force connector (incl. jack or antenna contact). Release the flex, document the screw order, lift the old part out of the frame.
- Insert the new USB-C 2.0 charging port
The replacement flex (USB-C 2.0 charging port flex with 3.5mm jack) is installed on the Galaxy A31 in exactly the same position. Screws with defined torque, connector pressed in with controlled pressure. No bending, no pulling – the wrong load costs pin contact.
- Re-glue the housing firmly
New adhesive layers on the frame of the Galaxy A31, back cover glued with adjusted pressure. Curing time 15–20 minutes, after which the bond is stable for everyday use.
- Function test 15W charging + data pins
Final test with a calibrated power supply on the Galaxy A31: the charging protocol starts at 15W, the pin contacts are checked for wiggle behavior, data transfer via USB to a test PC. Only when everything runs stable does the device go back to you.
Reparo works without customer access – your Galaxy A31 is picked up by courier in Vienna or sent in by post from the provinces.
Replace the Galaxy A31 charging port – price, process and service details in Vienna
The charging port on the Galaxy A31 is the most mechanically stressed port of the device – every plug-in stresses the USB-C 2.0 pins. After 2–3 years of daily use the mechanical limits show: pins wear out, data lines oxidize, solder joints on the flex tear. Reparo replaces it in Vienna for a 49 € fixed price – certified replacement flex, 6 months warranty. Anyone who notices further problems on the device often benefits from a combo repair – see our separate A31 battery replacement for details.
Certified replacement flex vs. Samsung original – what do you get?
On the Galaxy A31 we install charging ports that exactly match the Samsung flex: the same USB-C 2.0 standard, the same USB-PD certification, the same form factor. Samsung service packs are only available through authorized Samsung service centers – our OEM-compatible parts last measurably the same and carry identical pin assignment. You will find all further repair options on the Samsung repair overview.
Frequently asked questions about the Galaxy A31 charging port replacement
What does the charging port repair cost for the Galaxy A31?
The charging port repair costs 49 € fixed price at Reparo in Vienna for the Galaxy A31. Included: a new USB-C 2.0 charging port as a certified replacement flex, calibration of charge detection and 6 months warranty. The diagnosis (25 €) is waived on a repair order.
How long does the charging port replacement take on the Galaxy A31?
30–45 minutes of work in the Reparo studio in Vienna. The pickup service in Vienna drives to you in the morning, the repair runs in the afternoon, return often the same day. With the send-in service from the provinces we calculate 2–4 business days in total incl. shipping.
Does the Galaxy A31 charge again at 15W fast charging after the replacement?
Yes. The 15W fast charging on the Galaxy A31 runs via the USB-PD controller on the charging port flex – exactly this part is replaced. Our spare part has the identical USB-PD 3.0 certification as the original, so the full charging speed is available again. We test this after installation with a measuring device.
Does Reparo install original or replica charging ports on the Galaxy A31?
On the Galaxy A31 we use certified Samsung-compatible charging ports – the same USB-C 2.0 standard, the same USB-PD power, the same form factor. Original Samsung service-pack parts are only available through authorized Samsung service centers. Our alternatives come from specialized OEM manufacturers that also supply Samsung.
Is the Galaxy A31 waterproof again after the charging port replacement?
The Galaxy A31 has no certified IP protection from the factory – replacing the charging port does not change that. During reassembly we apply new adhesive and sealing layers so that everyday moisture (light rain, sweat in the pocket) is still kept out. You should avoid direct submersion in general, though.
Is any data lost during the charging port replacement on the Galaxy A31?
No. Flash storage, Samsung account, SIM card and microSD (if present) are not disconnected during the charging port replacement. Photos, WhatsApp chats, apps, Wi-Fi passwords – everything stays intact. We still recommend a Samsung Cloud backup before any repair as a standard precaution.
How does my Galaxy A31 get to the repair – pickup or send-in?
You have two options with the Galaxy A31: pickup service in all 23 Vienna districts (1010–1230) – the courier picks it up, delivers it back repaired, included in the 49 € fixed price. Or send-in from anywhere in Austria with insured shipping (Graz, Linz, Salzburg, Innsbruck, Klagenfurt) – return shipping also included, processing 2–4 business days.
Can I drop off my Galaxy A31 at Reparo?
Reparo has no on-site customer access in the studio. The only options with the Galaxy A31 are pickup service in Vienna (we come to you) or send-in by post from the provinces. That saves you the trip and often delivers your device back the same day.
How long is the warranty on the new charging port on the Galaxy A31?
Six months on the charging port and the installation. If a contact problem, loose contact or fast-charge failure occurs again in that time, we re-replace at no charge. Not covered: new mechanical damage from force or foreign objects such as keys or coins in the port.
Do I lose the Samsung warranty through the charging port replacement on the Galaxy A31?
The original Samsung warranty expires with any third-party intervention. On the Galaxy A31 (built in 2020) the manufacturer warranty has usually expired anyway. The Reparo warranty on the new charging port flex applies 6 months in parallel and is valid throughout Austria.
Can I clean the charging port on the Galaxy A31 myself first before doing the replacement?
Yes, with dust or lint careful blowing out with compressed air or a dry wooden toothpick helps. Not recommended: needles, metal tools or moist cotton swabs – they bend pins or cause short circuits. If cleaning does not help or the cable still wiggles afterwards, the port is mechanically worn out – then a replacement is the only solution.
My Galaxy A31 had water contact and no longer charges – is that purely a charging port case?
Sometimes yes, sometimes not. With water contact, moisture often settles first on the USB-C 2.0 pins and corrodes there. If only the charging port is affected, a replacement for 49 € is enough. With corrosion on the mainboard an additional ultrasonic bath is needed – we check that in the diagnosis (25 €, waived on repair) on the Galaxy A31.
How do I tell whether the charging port on the Galaxy A31 is really faulty or just the cable?
Test at least two other original cables and power supplies on the Galaxy A31. If it does not charge cleanly with any, the fault is in the USB-C 2.0 port. Additional hint: if wiggling the cable changes the charge, it is almost certainly the port. In doubt we check it in the paid diagnosis (25 €, waived on repair) – safer than permanently buying the wrong cable.
Is the charging port replacement on the Galaxy A31 still worth it in 2026?
The Galaxy A31 from 2020 still currently receives security updates from Samsung – check the update status directly on samsung.com. Charging port repair 49 € vs. a comparable used device from about 120 €, plus setup, new 2FA, data migration. The repair is the economically better choice in almost all cases.
What does the diagnosis cost for the Galaxy A31 if I want it checked first?
The diagnosis costs 25 € and is fully waived on a repair order. On the Galaxy A31 we check loose contact, pin geometry, the USB controller chip and the behavior during fast charging (15W). After that you get a fixed-price quote and can decide freely. No obligation to repair.
Replace the Galaxy A31 charging port in Vienna – book an appointment
Fixed price 49 €, 30–45 minutes of work, certified USB-C 2.0 replacement flex, 15W fast charging functional again, 6 months warranty. Diagnostic check 25 EUR, waived on repair. Pickup service Vienna or send-in from Austria.