Safety first: Never open a laptop with a swollen battery, and stop using a device that smells of burning, sparks or gets unusually hot. Unplug it and have a technician inspect it.
Common Symptoms and Likely Causes
Use this table to understand what a technician is likely to check first. It is a starting point for a conversation, not a diagnosis.
| Symptom | Common causes | Who should handle it |
|---|---|---|
| No power, no lights | Faulty charger or cable, worn DC jack, failed battery, or a motherboard power fault | Technician (after you try a known-good charger) |
| Powers on, black screen | Display cable, screen panel, backlight, RAM or graphics fault | Technician |
| Battery drains fast or swells | Worn or failing battery cells | Technician — stop using if swollen |
| Overheating, loud fan, sudden shut-offs | Dust build-up, failed fan, dried thermal paste | Technician for cleaning; check vents yourself |
| Very slow, freezing, crashes | Failing storage drive, low memory, software or malware problems | Back up first, then technician |
| Keys or trackpad not responding | Liquid damage, keyboard ribbon cable, worn keyboard | Technician |
Safe First Checks Before You Book
These simple checks can save a call-out or help you describe the problem clearly. None of them require opening the device.
- Try a known-good charger and outlet
A worn charger or cable is a common cause of “dead” laptops. Check for a charging light.
- Connect an external monitor
If the picture appears on the monitor, the fault is more likely the screen or its cable than the motherboard.
- Note exact error messages and beeps
Photograph any error on screen and note beep patterns or flashing lights — they help a technician narrow the fault.
- Back up while it still works
If the device still starts, copy important files to an external drive or cloud storage before anything else.
When to stop: Stop and use a professional if the battery is swollen, the device has had liquid spilled on it (unplug it and don’t switch it back on), or you smell burning.
Component Swaps vs. Board-Level Repair
Repair shops differ in what they can do. Knowing the difference helps you understand quotes for “no power” and motherboard faults.
Parts replacement
Module and part swaps
Most shops can replace screens, batteries, keyboards, storage drives, memory and fans. For a motherboard fault, they will typically quote a replacement board, which can be expensive or hard to source for older models.
Board-level repair
Component-level diagnosis
Some specialists repair motherboards at component level using a microscope, bench power supply and soldering equipment. This can be cheaper than a new board when the fault is a single failed part — ask whether the shop offers it.
Protect Your Data and Privacy
Your device holds personal files, saved passwords and logged-in accounts. Take these steps before handing it over:
- Back up everything important
If the device still works, make a full backup. Even routine repairs can occasionally require a drive to be wiped.
- Ask whether they need your password
Most hardware repairs (screens, batteries, hinges) can be tested without logging in. If a login is needed, create a temporary local account instead of sharing your own.
- Sign out and remove sensitive items
Sign out of email, banking and cloud accounts where you can. If the repair doesn’t involve the drive, ask whether you can keep the drive yourself.
- Get a receipt listing the device
The intake receipt should list the model, serial number, visible condition and accessories you left (charger, bag).
Questions to Ask Before You Book
Call two or three shops and ask the same questions so you can compare answers like-for-like.
Q1: “What is your diagnostic or bench fee, and is it credited if I go ahead with the repair?”
A clear shop will tell you the fee up front and how it is handled. Get the answer in writing on the intake receipt.
Q2: “Will you give me a written, itemised quote before any work starts?”
You should approve the parts, labour and total before the repair begins — and be contacted again if the price changes.
Q3: “Do you repair motherboards in-house, or replace them / send them out?”
This tells you whether you are likely to receive a board-replacement quote or a component-level repair option, and affects turnaround time.
Q4: “What warranty do you give on parts and labour, and is it written on the invoice?”
Warranty periods vary by shop and part. What matters is that the terms are written down.
Repair or Replace?
There is no single rule, but these factors help you decide:
Compare with the device’s value
Look up what your model sells for used. If the repair approaches that figure, replacement may be better value.
Consider age and support
Older devices may no longer receive security updates, and parts may be scarce or second-hand.
Check existing cover first
Manufacturer warranty, extended warranty, credit-card purchase protection or home insurance may cover the fault.
Factor in your data
If the drive is healthy, data can usually be moved to a new device — ask about this when getting quotes.
Checklist Before You Pay
In-shop verification
Before final payment- Test the repaired function in front of the technician — screen, keyboard, trackpad, webcam, Wi-Fi, sound and ports.
- If the battery or charging circuit was repaired, confirm the charge percentage rises while plugged in.
- Check the case for new scratches, missing screws or gaps, and confirm your files are still there.
- Ask for any replaced parts back if you want them, and get an itemised invoice showing parts, labour and warranty terms.
Next steps
This guide is general educational information, not a diagnosis. Repair Guide does not perform repairs or recommend specific businesses. Always follow the manufacturer’s instructions and use a qualified technician for electrical, gas and refrigerant work.