Lenovo ThinkPad no-POST BIOS firmware recovery in Putney SW15
Lenovo ThinkPad wouldn't POST after a failed BIOS update. At our Putney SW15 workshop we reprogrammed the SPI flash chip with verified Lenovo firmware.
Dead Keys, Keyboards That Won't Type, and Spill Damage — Diagnosed Before Anything Is Replaced
Last updated: August 2026
A keyboard that stops typing is one of the most misdiagnosed faults we see. Sometimes it genuinely is the keyboard. Just as often it is a ribbon cable that has worked loose, a driver or filter-key setting, a stuck function lock, a failing keyboard controller on the board, or a spill from three weeks ago that is only now corroding a trace. Replacing the keyboard fixes exactly one of those. So we triage first — on the bench, with an external keyboard, a live boot and a proper look inside — and only then tell you what it needs. Work is done in our own workshop on Lower Richmond Road in Putney, with free collection and return across South West London.
The work we carry out is covered by a 90-day warranty. If the same fault comes back inside that window, we put it right.
We collect and return across South West London at no charge, so you do not have to make the trip to get your machine looked at.
Screens, batteries, keyboards, RAM and SSDs for the models we see most are on the shelf at our Putney workshop, so the usual jobs are not waiting on a supplier.
Same-day turnaround is available on many jobs — ask when you book and we will confirm availability and any additional cost before we start.
We establish what is actually broken before quoting a part. External keyboard test, live boot to rule out Windows or macOS settings, connector reseat, and a look for liquid ingress. If a £0 fix will do it, that is what you get told.
Where the keyboard itself has failed, we fit a correct-layout UK replacement — including backlit versions where the machine originally had one. Common models are held in stock; less usual ones are ordered once you have approved the quote.
One key missing, loose, or refusing to press properly is usually a broken scissor clip or hinge rather than a dead keyboard. Where the mechanism can be rebuilt or the keycap replaced, that is far cheaper than a whole assembly.
Liquid rarely stops at the keyboard. We open the machine, check the membrane, connector and the board underneath for corrosion, and tell you honestly whether a new keyboard will hold or whether there is board damage behind it.
On most MacBooks the keyboard is riveted into the top case with the battery and trackpad, so it is a bigger job than a Windows laptop swap. We assess whether a full top-case replacement is warranted or whether the fault sits elsewhere.
A whole row of dead keys, or a keyboard that works until the lid moves, usually points to the ribbon cable or its ZIF connector rather than the keys. We reseat, repair or replace the connector, including board-level work where the socket has lifted.
Simple steps to get your problem solved quickly and professionally.
Which keys, when it started, and whether anything was spilled. Those three answers narrow the cause dramatically before the machine is even opened. Call, WhatsApp, or walk into the Putney shop.
External keyboard test, live boot, connector check and an internal inspection for liquid. This separates a genuine keyboard failure from a driver, connector or board-level fault.
You get the actual cause and one fixed price covering parts, labour and turnaround. Nothing is ordered and nothing is dismantled further until you say yes.
The replacement goes in, then every key, modifier and function row is tested — plus the backlight and trackpad, which share the same area. You collect a machine that has been typed on, not just reassembled.
Prefer the quick version? The sections above cover most needs. Expand any topic below for more detail.
Four faults produce almost identical symptoms and have completely different fixes. This is how we tell them apart:
A genuinely failed keyboard
Scattered dead keys, a keyboard that works cold and fails warm, or nothing at all while an external USB keyboard types perfectly. The membrane or its traces have gone, and replacement is the fix.
A driver or settings problem
Filter keys switched on, a stuck Fn or number lock, a corrupt keyboard driver after an update, or a wireless keyboard the machine has silently reconnected to. Costs nothing to fix and needs no parts at all.
A cable or connector fault
Whole rows or blocks of keys dead, or the keyboard cutting out when the lid is moved. The ribbon has worked loose or the ZIF connector has failed — reseated or repaired, not replaced.
Delayed spill damage
Typing was fine after the spill, then keys started failing days later. Corrosion is spreading on the membrane or the board beneath. A new keyboard alone will fail again if the board is not dealt with.
This is why we test before we quote. Around a third of keyboard enquiries turn out not to need a new keyboard at all.
Different manufacturers fail in different ways, and knowing the pattern shortens the diagnosis:
Whatever the badge, the process is the same: prove the fault, price the real fix, then do it.
Not every keyboard fault justifies a whole new assembly, and we will say so:
The aim is a keyboard you can type on without thinking about it, at the smallest sensible cost.
Not sure what you need? We're happy to help.
Starting from
£60
Keyboard replacement sits in the £60–£200 range, and the part is what moves the number: a common Windows laptop keyboard is near the bottom of that range, while a MacBook top-case assembly is near the top. Single-key and connector repairs are often cheaper than a full replacement, which is exactly why we triage before quoting. Same-day turnaround is available on stocked parts and carries a surcharge, disclosed when we quote.
Fixed Quote Before Work · 90-Day Warranty on Repairs · Free Collection & Return Across South West London
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We provide Laptop Keyboard Repair & Replacement in London across South West London
Serving Wandsworth, Wimbledon, Putney, Clapham, Balham, Tooting, and surrounding areas.
View all service areasBring it into the Putney workshop or book a free collection. We triage before we quote, so you only pay for a keyboard if the keyboard is genuinely the problem.