This page sets out the repairs, upgrades and data recovery we carry out on the Dell Inspiron 15 3521, with notes on what tends to go wrong and what can and cannot be upgraded. The Dell Inspiron 15 3521 is a 2013 laptop with a 15.6-inch screen. Both the drive and, on most configurations, the memory can be upgraded, which makes it a good candidate for a refresh.
- Model number
- 3521
- Released
- 2013
- Type
- Laptop
- Screen
- 15.6-inch
- Storage
- M.2 SSD, plus a 2.5-inch bay on some configurations
- Memory
- SODIMM slots
What we repair on the Dell Inspiron 15 3521
Screen replacement
Cracked, flickering or lined 15.6-inch screens are replaced with a matching panel. Where the picture comes and goes as the lid moves, we check the display cable and hinges first.
Price confirmed before work starts
Battery replacement
We replace the internal battery and check the charging circuit and adapter at the same time. A battery of this age that swells should be replaced before it damages the trackpad or casing.
Price confirmed before work starts
Charging port and power repair
A charger that only works at a certain angle means a worn charging socket. We replace it and test the charging circuit behind it.
SSD and storage upgrade
The Dell Inspiron 15 3521 has an M.2 slot and, on some configurations, a 2.5-inch bay. Machines that shipped with a hard drive are much faster once moved to an SSD.
Price confirmed before work starts
Memory upgrade
Most configurations of the Dell Inspiron 15 3521 have SODIMM memory slots, so memory can be increased. We check what is fitted and the maximum the board supports.
Windows repair and reinstall
This model does not meet Microsoft’s Windows 11 requirements, and Windows 10 reached end of support in October 2025. We can advise on the realistic options, including a lightweight Linux or ChromeOS Flex installation.
We also carry out keyboard and trackpad repair, motherboard repair, liquid damage repair, overheating and fan repair, hinge and casing repair, virus removal on the Dell Inspiron 15 3521, along with USB, HDMI and audio port repair, Wi-Fi and Bluetooth card replacement, webcam and speaker faults, BIOS password removal with proof of ownership and data transfer to a new machine.
Notes from the workshop
- Hinge mounts in the lid and base are a known weak point on Inspiron laptops. Caught early it is a hinge and bracket repair; left alone it can break the screen bezel and back cover.
- Many configurations shipped with a mechanical hard drive. Moving to an SSD is the most noticeable improvement for the money.
- The charging socket is a separate part on most models and can be replaced without touching the motherboard.
Data recovery from the Dell Inspiron 15 3521
The SSD in the Dell Inspiron 15 3521 can be removed and imaged on our own equipment, so files can usually be recovered even when the machine will not start.
Estimate the cost with our data recovery calculator, or read about recovering files after a ransomware attack.
Where the Dell Inspiron 15 3521 sits in the range
Its nearest relatives in the Dell Inspiron 15 range are the newer Dell Inspiron 15 3541 (2014). It is the earliest 15.6-inch model of the range that we list.
Questions
Can the SSD or memory in the Dell Inspiron 15 3521 be upgraded?
The M.2 SSD can be replaced, and some configurations also have a 2.5-inch bay. Memory is in slots on most configurations and can be increased.
My Dell Inspiron 15 3521 will not turn on. Is my data lost?
Usually not. The drive is separate from the fault in most cases, and we can remove it and copy your files even if the machine itself is not worth repairing.
Is a 2013 Dell Inspiron 15 3521 still worth repairing?
It depends on the fault. A battery, SSD or charging socket is usually worth doing. A major board repair on an older machine may cost more than the machine is worth, and if that is the case we will say so.
Where do I find the model number on my laptop?
The model name is on the base label or palm rest. The 7-character Service Tag on the base identifies the exact build. For this model, look for 3521.