This page sets out the repairs, upgrades and data recovery we carry out on the Dell Vostro 14 3420, with notes on what tends to go wrong and what can and cannot be upgraded. It is a 14-inch laptop from 2022. Both the drive and, on most configurations, the memory can be upgraded, which makes it a good candidate for a refresh.
- Model number
- 3420
- Released
- 2022
- Type
- Laptop
- Screen
- 14-inch
- Storage
- M.2 SSD, plus a 2.5-inch bay on some configurations
- Memory
- SODIMM slots
Repairs we carry out on the Dell Vostro 14 3420
Screen replacement
Cracked, flickering or lined 14-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
Memory upgrade
Most configurations of the Dell Vostro 14 3420 have SODIMM memory slots, so memory can be increased. We check what is fitted and the maximum the board supports.
Windows repair and reinstall
The Dell Vostro 14 3420 shipped with Windows 11. We repair start-up faults, reinstall Windows cleanly with your files kept, and remove malware.
Battery replacement
The battery is internal and held by screws. We fit a new one, then calibrate and test it under load. On a 2022 machine a worn battery is the likely cause of short runtime, and we measure its capacity before recommending anything else.
Price confirmed before work starts
Charging port and power repair
We replace worn charging sockets and repair USB-C ports and charging circuits at component level. The adapter is tested first, because it is the cheapest thing to be wrong.
SSD and storage upgrade
The Dell Vostro 14 3420 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
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 Vostro 14 3420, 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
- Vostro models share much of their design with the Inspiron range, including hinge mounts that loosen over time.
- Most have an M.2 slot and many also have room for a 2.5-inch drive, which makes storage upgrades easy.
Data recovery from the Dell Vostro 14 3420
The SSD in the Dell Vostro 14 3420 can be removed and imaged on our own equipment, so files can usually be recovered even when the machine will not start. Recent Windows machines often have device encryption or BitLocker switched on. If so we will need the recovery key, which is normally saved in your Microsoft account.
Estimate the cost with our data recovery calculator, or read about recovering files after a ransomware attack.
Where the Dell Vostro 14 3420 sits in the range
Its nearest relatives in the Dell Vostro range are the older Dell Vostro 14 5410 (2021) and the newer Dell Vostro 14 3430 (2023).
Questions
Can the SSD or memory in the Dell Vostro 14 3420 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 Vostro 14 3420 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.
Can the Dell Vostro 14 3420 run Windows 11?
Yes. It shipped with Windows 11.
How do I get my Dell Vostro 14 3420 to you?
Bring it to our workshop at Unit 1 The Willows, 80 Willow Walk, London SE1 5SY, or call 020 7237 6805 to ask about courier collection. We confirm the price before any work starts.