10-13-2016 04:09 PM - last edited on 10-21-2016 01:49 PM by NateS
I am trying to locate the broadband sim card slot. I have a ThinkPad Yoga 14 with a EM7455 WWAN broadband card in the M.2 slot. Documentation shows sim card slot on the back opposite the fans with a pin hole to pop out a SIM tray. There is no slot on back of the case. I took bottom cover off the Yoga 14 and located a SIM card socket, but I am not sure its the broadband sim card socket to hold a broadband provider sim (like one from T-Mobile or AT&T).
At the back about where there should be a SIM card tray, there is a 8 contact SIM socket labeled SIM1 on the motherboard. I am assuming this the cellular SIM card socket, but it will not take a micro-sim card. It is to loose to hold it. It looks like it needs a sim tray.
Anyone have any experience with a ThinkPad Yoga 14 sim card or have a suggestion? Photos of motherboard and sim slot below.
Thank you, Gerry
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10-14-2016 07:58 PM
Hi, welcome to the forums.
I don't have much experience with the TP Yoga 14 and the broadband card, mine does not have one.
The SIM slot looks like it is for a regular size SIM, if you want to include a micro-sim card it looks to me you need the adapter, which is just a piece of plastic that fits the micro-sim card.
I can not know exactly which you need:
But I have a doubt on where is the M.2 EM7455 WWAN broadband card. Checking the maintenance manual I was not sure where it fits: https://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/tp_yoga_b
From what I see here is the location of M.2 slot, but I'm not sure if the broadband card goes there.
Sorry to don't be more helpfull.
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10-14-2016 10:52 PM
Thank you for the response. I have already installed a M.2 EM7455 WWAN broadband card in the empty M.2 slot which is recognized by Windows 10. I tried the sim adapters standard, micro, and nano. The standard was too wide and the micro too narrow. This leads me to believe the sim slot/socket takes a little tray similar to an iPhone sim tray. I looked in Lenovo parts online for ThinkPad Yoga 14. They show a sim bracket part# 00UP121 under mechanical assemblies. I ordered one to see if works. Just baffled why the Yoga 14 cover does not have an external opening for the sim bracket tray. Below is a picture of the part off the web site.
03-28-2017 08:40 AM
I ordered the SIM card sim bracket part# 00UP121 under mechanical assemblies. It did work, but I had to file a rectangular opening in the laptop case for the sim card bracket to slide through to push into the sim socket on the motherboard. The hole in the sim card is to stick a small wire or pin into to pop out the sim card. I do not know why the sim card slot was not already cut through the case to access the sim card slot. Disappointing for a company like Lenovo.to leave engineering and manufacturing undone in a released product like a ThinkPad