Annoyance is that the 'mouse' click buttons and the scroll trapezoid between them are not lit. (On one keyboard there is a small spot of light between right button and scroll, at top. Perhaps some day I will remove those to see if there is more.) As for feel of keys, one degradation may be dust fluf...

Another frustration from Loonovo - DC power supply plug

The plug on the vehicle end of the DC power supply I purchased for my T480 is too large for standard 'cigar lighter' DC outlet

You have to push hard to get it in.

Then use pliers to get it out.

Sure, if you want to risk burning out the charger. )

I've had one T480 charger and one UltraDock charger quit.

I'd try the secret Reset button hidden in small hole on bottom.

(In a storm try everything.

I'd try the magic reset button hidden in a small hole on bottom.

(Everything in a storm.

Inspect for debris such as a piece of paper towel or tissue.

Spray electrical contact cleaner into it and let dry out.
(Power off and unplugged first.)

I'd tap it with a coin, comparing to something of similar shape and thickness.

Metal probably sounds different than plastic.

In the T480 there's a zoo of settings/turnons needed.

Two different audio programs, and don't overlook F1 Mute.

It's User Hostile.

Despite deposition printers as low as $500 it may be better to dump Loonovo and by an Acer or Asus desktop.
)

Lit keyboard may have better key function than regular but is not a quality design.

Quick guide:
Use Windows power-Restart with Shift held down
Troubleshoot|Advanced|Start-up Settings|Restart
Various boot options displayed IF Restart again
Eventually get list with Safe mode and Safe Mode w/command line options
Enter number of desired function.

Ran System File Checker yesterday but had to dodge a brick. Used 'Safe Mode with Command Line'. On Resume went to dark screen with cursor pointer visible and moved by red stick. After a couple of cold reboots it started normally but very slow. Some of that time was security checking software. I did ...

I recommend avoiding Windows 11, unless there is a significant security advantage.

My T480 mule has it, several anomalies.

One was fixed by recent update, another annoying one remains.

Microsoft's history is to need several patches over years.

The lighted keyboard does not have much better feel, have to be deliberate on finger pressure and proofread what I type.

Hey 'Admin', your PS experience is not relevant unless you had hardware that uses much power. The Ultra (AJ) dock for 2019 and later Thinkpads uses power, especially if many devices connected. There's several USB ports and monitor ports (HDMI and VGA, I only use HDMI) plus dock's own need plus the c...

There is a 170 watt PS with the plug for the AJ dock, standard one is 135 watt. I purchased an aftermarket one, checked voltage and polarity, and tried it - appears to work. It is intended for a large Thinkpad of some model. Earlier large Thinkpads such as the dual display model of several years ago...

Lighted keyboard I purchased works, yay!

(Swapped red stick cap for concave one.)

Same connectors, small, those have wire hoop retention whereas some others have hinged top to connector. Need magnifying glasses to work on these beasts.

Regrets, I have to dig out what the p/n was.

I upgraded memory by adding 16GB to the 8 installed (putting larger module in the primary slot, confirmed OS sees 24).

I used Crucial CT164G4SFD824A.

(Computers don't always like a mix of sizes but T480 accepted mine.)

Thankyou RBS. I'll dig out my failed T480 that Loonovo stiffed me on warranty of. Will look at the fuses, order some if suspect fuse (unsure if ohmeter will work as other circuitry may be connected though shouldn't be). Price of fuse less than $1 but shipping costs $20 unless I can buy other things ...

The reset hole is listed in descriptions of bottom, but I don't see it in troubleshooting section. As is the 'nano-SIM' card slot (hidden by the external battery). Need to tape a paper clip somewhere to have one handy. :-o) (Perhaps should study the entire HMM for hours. :-o) Jargon decode: PATA was...

To ensure I've said:

Problem with TrueImage mis-representing drive size may be that drive has errors on it.

So run scandisk, defrag, and while you are at it sfc (System File Checker), before you make the image.

I used v2013 in Windows 7.

Takes some learning.

Opened my main T480 to take out the M.2 drive and put it in a USB enclosure to run ReClaiMe recovery software on it as I lost some files. (Using my backup/mule T480.) Oh! it has a hard disk drive. Different drive cage than used for M.2, looks like same connector on motherboard, poor design but don't...

I use cooling bases - fan blows air against bottom of computer or dock. Not as powerful as I want. They may come with tilt capability, if using it keeping the computer from sliding is a task: - one model gives you rubbery stick on strips but they come off - 'liens' brand has a foldout barrier They o...

Check Hardware Maintenance Manual at lenovo.com in case it gives information.

But Lenovo no longer provides p/ns in the HMM, much diffing required - or perhaps Support can tell you what the fuse is.

Indeed 'delmaria', I have had failures of the Lenovo power brick. To avoid wearing out the jack, perhaps could use an extender cable so wear is on an easily replaceable cable and there's much less stress on the jack - especially if buy cable with right angle end. https://www.amazon.ca/UGREEN-Extensi...

'astral', the Ultradock for T480 and similar, that have USB-C normal power jack, is yellow but two contact paths AFAIK - a pin and inside of rectangle, it is used on some older large Lenovo computers I was able to find two real Lenovo PS on eBay so have the dock running again to get its extra ports,...

I finally ran System File Checker, using the tactic of holding Shift key down while commanding Power|Restart. (Problem has been that Windrows demands Administrator privileges but does not respect that your user profile already includes that. Some advice is to find the eecutable and right-click to ge...

Light is bothersome if you have laptop well back on desk, such as when wanting papers in front.

I presume there is an everywhere panel of light under the keyboard.

Standard power brick for T480 FAILed, fortunately I had a backup one. High capacity power brick for UltraDock FAILED, fortunately that dock is used with my mule T480. (Besides high capacity, that brick has different connector: - standard brick is USB-C - UltraDock is rectangular (yellow plastic inse...

The backlit keyboard on my backup T480 works fine. Light shines though letter on key, also visible under key but I'd rather not have that. Turn backlighting on and increase brightness with Fn+Space keys (the latter has a symbol on one end). And reliability of key presses seems better than unlit one.