My experience has been that Qualcomm mobile phone chipsets don’t run Android on the modem side, but that standalone (ie laptop / USB / router) ones like this Quectel part sometimes do, in order to provide the userland components that run on the phone’s Android system / AP in a phone application. The actual basebands run an OS called REX usually.
it's incredibly repairable. I still use the t480 for modern workloads because I've been able to switch out the battery, the fan, the keyboard with fairly abundant aftermarket parts.
sadly my t480's usb c port is no longer able to charge the device, do you know of a way to fix it without replacing the mobo / getting god tier soldering skills? i'm kinda attached since i did a bunch of upgrades like two heatpipes and glass touchpad, sad to see my laptop from college die for a reason like the port dying
Nice, I know these mainly had a spare NVMe slot right next to the WiFi, in case you had the optional WWAN adapter, and the essential SIM card holder itself is also there already regardless. The separate unused (apparently non-standardized) cellular antenna connectors are also there and taped off from the factory otherwise.
I would have never imagined that the Lenovo WWAN approach would not even support audio calling, good findings and excellent workaround :)
What I did was use a 2242 size NVMe SSD in that WWAN slot for extra storage, plugged in right next to the standard Wifi card.
Unfortunately I can not get this 500GB NVMe SSD to boot in the Lenovo WWAN slot, even though it works good in a regular NVMe SSD position. Even with functional boot files on the main working SSD which point to the proven OS on the NVMe in the WWAN slot.
Still good for additional SSD storage at least.
And it's good to know you figured out how to get WWAN calling working better than new on an older laptop, that's hacking that non-tech people can see how worthwhile it is :)
Great work!
I have 4 t480s...and I buy new ones to cannibalize rather than replace the parts as works out to be still cheaper. they are the last of the period that still have an extra memory slot so can be upgraded and put to good everyday use.
This just makes it perfect as I only use the handphone for 2FA and no longer need the dying and hard(er) to find OnePlus 6/T
Plug in an EG25-G USB module. It has good driver suppport on linux as this is the same modem that's in the pinephone. About $60 plus the antennas. It also gives you GPS.
I'm actually working on this right now. I made a case for the module + antennas if you want.
EDIT: oops I hadn't read the article yet LOL. But the wisdom about the USB module still applies. There are also adapters for mpcie or m.2 or whatever modules to convert them to USB modules. Also you probably want to have a module or adapter with a sim card tray.
I bought mine off of aliexpress and also bought the LTE antennas. You need a separate antenna for GPS as well.
Lastly, with some of these adapters, the sim card goes in backwards relative to how you normally think it goes in. This had me stuck for a couple hours.
Yes, whoever can shrink this down to the size of something that would fit in your pocket would make a killing. Imagine not only being able to make phone calls, but use productivity software and even browse the internet.
Lenovo has whitelists for both wifi and cell cards. It's highly annoying.
A decade ago, I had a Lenovo Yoga 2. The Wi-Fi card it came with only supported 802.11g, or something old and outdated at the time. I learned about the whitelist the hard way when I bought a decently (then) up-to-date wifi card to upgrade, and the computer refused to boot.
But! I refuse to let a computer tell me no... So, after many many (too many) hours of reading forums, dumping firmware, flipping bits, and pushing firmware, I got the stupid card to work. And of course I took no notes, so if I had to do it again, I'd be starting from scratch.
Not just that, they restrict the WWAN slot to cell modem cards only.
This really sucks because it’s just mPCI and could host a number of other things. I used the WWAN slot on an old Dell Precision to adapt to a modern Intel WiFi+BT card for example (a 2008 laptop with WiFi 6E+BT 5!).
On my X1 Nano, the slot isn’t even wired to an antenna since I didn’t get the cell BTO option, so it’s present but totally useless thanks to the restriction. They could at least let me pop a second SSD in there…
Alternatively you could use a GNU/Linux phone (Librem 5 or Pinephone), which allows to freely choose the OS and supports ordinary mobile use cases. It is small, but if you connect a screen and keyboard, you get the full PC.
I’m disappointed in the lack of a Trigger Happy TV skit, but I’ll let it slide for reminding everyone that repairable laptops exist, and are still great
most Android phones have a separate Android system running in the modem
Very strong doubt. They're usually running a RTOS. My experience has mainly been with Mediatek's, which use Nucleus Plus.
The OP may have confused things with the ultra-cheap USB modems which are actually a headless smartphone, and those do run Android: https://liliputing.com/this-dirt-cheap-4g-lte-modem-on-a-usb...
What about Qualcomm modems? It is the case for this one at least.
My experience has been that Qualcomm mobile phone chipsets don’t run Android on the modem side, but that standalone (ie laptop / USB / router) ones like this Quectel part sometimes do, in order to provide the userland components that run on the phone’s Android system / AP in a phone application. The actual basebands run an OS called REX usually.
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Think I've heard something about OKL4 but I wouldn't be sure.
I love the hackability of Thinkpads circa that generation.
it's incredibly repairable. I still use the t480 for modern workloads because I've been able to switch out the battery, the fan, the keyboard with fairly abundant aftermarket parts.
sadly my t480's usb c port is no longer able to charge the device, do you know of a way to fix it without replacing the mobo / getting god tier soldering skills? i'm kinda attached since i did a bunch of upgrades like two heatpipes and glass touchpad, sad to see my laptop from college die for a reason like the port dying
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ThinkPad T480 can be used as a fully featured mobile phone, supporting calls, SMS and mobile data.
Great hack! Is it possible to use a Bluetooth headset?
Of course! You can connect it to any audio source a sink. I had fun with piping music to phone calls with friends.
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Nice, I know these mainly had a spare NVMe slot right next to the WiFi, in case you had the optional WWAN adapter, and the essential SIM card holder itself is also there already regardless. The separate unused (apparently non-standardized) cellular antenna connectors are also there and taped off from the factory otherwise.
I would have never imagined that the Lenovo WWAN approach would not even support audio calling, good findings and excellent workaround :)
What I did was use a 2242 size NVMe SSD in that WWAN slot for extra storage, plugged in right next to the standard Wifi card.
Unfortunately I can not get this 500GB NVMe SSD to boot in the Lenovo WWAN slot, even though it works good in a regular NVMe SSD position. Even with functional boot files on the main working SSD which point to the proven OS on the NVMe in the WWAN slot.
Still good for additional SSD storage at least.
And it's good to know you figured out how to get WWAN calling working better than new on an older laptop, that's hacking that non-tech people can see how worthwhile it is :)
Considering the size of current smartphones, using laptop as more compact alternative is quite clever idea.
Great work! I have 4 t480s...and I buy new ones to cannibalize rather than replace the parts as works out to be still cheaper. they are the last of the period that still have an extra memory slot so can be upgraded and put to good everyday use.
This just makes it perfect as I only use the handphone for 2FA and no longer need the dying and hard(er) to find OnePlus 6/T
Thank you!
Incredible. Thank you for posting that. What software do you use for phone calls?
Is there an easy way to make any generic computer work as a phone without hacking it?
Plug in an EG25-G USB module. It has good driver suppport on linux as this is the same modem that's in the pinephone. About $60 plus the antennas. It also gives you GPS.
I'm actually working on this right now. I made a case for the module + antennas if you want.
EDIT: oops I hadn't read the article yet LOL. But the wisdom about the USB module still applies. There are also adapters for mpcie or m.2 or whatever modules to convert them to USB modules. Also you probably want to have a module or adapter with a sim card tray.
I bought mine off of aliexpress and also bought the LTE antennas. You need a separate antenna for GPS as well.
Lastly, with some of these adapters, the sim card goes in backwards relative to how you normally think it goes in. This had me stuck for a couple hours.
> You can even use Android apps natively with Waydroid
Is that what's shown in the video? Or just another phone app that coincidentally looks like Android?
That's the gnome dialer, yeah.
I still use my beloved t480 ... and there is still more amazing things it can do :) thank you!
A setup like this but in phone size would be ideal. The free software mobile world has really been a dumpster fire from the beginning.
Yes, whoever can shrink this down to the size of something that would fit in your pocket would make a killing. Imagine not only being able to make phone calls, but use productivity software and even browse the internet.
May your wish be granted:
https://www.amazon.com/GPD-Pocket-LPDDR5X-Bluetooth-Handheld...
plus this: https://gpdstore.net/gpd-pocket-4-4g-lte-module/
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A big issue is that the keyboard would take up valuable screen estate.
Here you go: https://puri.sm/products/librem-5
I can imagine it! It should be called the Imagine Phone, or iPhone for short.
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That modem or a few others can be used with some of the small SBCs, which have a smartphone size or even a smaller size.
If you connect then to some battery pack with a USB charger, you have a mobile solution, though one more cumbersome than a real smartphone.
Why not a SIP client like everyone else?
It has whitelist for wireless cards ? That's just evil
Lenovo has whitelists for both wifi and cell cards. It's highly annoying.
A decade ago, I had a Lenovo Yoga 2. The Wi-Fi card it came with only supported 802.11g, or something old and outdated at the time. I learned about the whitelist the hard way when I bought a decently (then) up-to-date wifi card to upgrade, and the computer refused to boot.
But! I refuse to let a computer tell me no... So, after many many (too many) hours of reading forums, dumping firmware, flipping bits, and pushing firmware, I got the stupid card to work. And of course I took no notes, so if I had to do it again, I'd be starting from scratch.
Not just that, they restrict the WWAN slot to cell modem cards only.
This really sucks because it’s just mPCI and could host a number of other things. I used the WWAN slot on an old Dell Precision to adapt to a modern Intel WiFi+BT card for example (a 2008 laptop with WiFi 6E+BT 5!).
On my X1 Nano, the slot isn’t even wired to an antenna since I didn’t get the cell BTO option, so it’s present but totally useless thanks to the restriction. They could at least let me pop a second SSD in there…
Supposedly it's for FCC compliance. Makes perfect sense if you believe it, but I'm not super convinced.
Alternatively you could use a GNU/Linux phone (Librem 5 or Pinephone), which allows to freely choose the OS and supports ordinary mobile use cases. It is small, but if you connect a screen and keyboard, you get the full PC.
Between a T480, Librem 5, or Pinephone, I wonder which is most powerful. I have a soft spot for my Pinephone, but fast it is not.
The T480 wins by a country mile.
I’m disappointed in the lack of a Trigger Happy TV skit, but I’ll let it slide for reminding everyone that repairable laptops exist, and are still great