Lenovo X1 Carbon X Series ThinkPad :: SIM Card Not Detected (Sierra EM7345 WWAN Modem)
Jan 3, 2015
I have a X1 Carbon with Sierra EM7345 WWAN modem. It is all installed perfectly - drivers etc. But id does not recognize the SIM card. I have googled a bit and I can say that:
1) I have the drivers OK, I have the WWAN network adapter etc.
2) I have inserted the SIM card correctly
The SIM card works perferctly if I use the USB 3G stick instead. So the problem is not in the SIM card. I think there is some configuraiton of the Sierra modem which should be done - to switch to 3G/2G or something.
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Apr 8, 2014
The Broadband on my X1 Carbon (Gen 2) always fails to connect with an error message saying that "You're either out of service or SIM card not activated" while neither of these conditions are true. Oddly, SMS is working fine and I can both send and receive messages without problems.
What could be wrong? How can I diagnose and fix the issue?
Some more details:
- The ultra-book is a Type 20A7 which came with the SIM slot but no broadband modem. At that point Access Connections showed the Broadband option greyed out. I had to call support to find out why and that's when I learned there was no modem.
- Support told me to order part number 04X6038 which is a Sierra Wireless EM7355. After installing the latest driver, the Broadband option was now enabled but it still failed with the error message mentioned above.
- At the wireless store I told them it was not working and they gave me a new SIM card. This time I received a welcome SMS message. i tried sending to a few numbers and replying which works.
- The wireless provider took the IMEI number of the EM7355 and confirmed it was compatible which seems logical considering SMS is working.
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Mar 29, 2010
I purchased that WWAN for my D630.
First, can I use drivers from HP site?
http://h20000.www2.hp.com/bizsupport...5&mode=4&idx=0
Driver from 2007
or it should be Dell dedicated?
Second, how I connect to the Internet? after inserting SIM card.
What software do I need? and where can I get it?
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Feb 24, 2010
Is it possible? I have successfully booted from a USB Thumbdrive. When I put the same image onto an SD Card & boot up, the SD Card does not appear and the bootable devices list.
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Apr 29, 2014
I have X1 Carbon Type 3443. Is there a way to use scandisk micro SDHC card? In past (other laptops), I was able to use USB to read them.
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Feb 5, 2014
I have a problem which does not persist on another machine with windows 7.
Lenovo connects to the internet with this modem, but then after sometimes 5 minutes, sometimes after half an hour, the modem loses conncetion, although its dedicated application does not indicate lost connection.
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Apr 12, 2014
Does 3680-VH5 has 3G modem inside?
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Jul 7, 2014
I want to install an additional M.2 SSD to my X240. As far as I know, X240 has three M.2 port:
- One single side M.2 for wireless card
- One single side M.2 42 mm for WWAN (3G card). Mine is empty in this slot.
- One double side M.2 for cache drive.
For M.2 cache drive, I dont know if my machine has it. I dont have smart card reader module either.
But I do have the single M.2 42 mm.
I want to buy a SSD: MyDigitalSSD Super Boot Drive 42mm SATA III (6G) M.2 2242 NGFF SSD (128GB (120GB)) But it is double side (B and M key).
tell me if I can install it to M.2 slot of WWAN module?
This is the picture of my WWAN slot
[URL]
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Feb 17, 2014
What build in program in New X1 carbon is for optimizing (Maintainance) SSD? I believe the "defragment tool" provided in control panel is no use for optimizing the SSD?
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Feb 23, 2014
I have a 3 month old X1 Carbon. Last night i turned it off and suddenly today morning, I find that the device is not powering on. What's the deal? No response at all even after continuosly pressing the power button.
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Aug 27, 2013
My X1 is about 18 months old. It was fine until today. The battery was low, so I plugged it in. The little blue light where the power connects illuminated, however the battery indicater in Windows did not change to show "charging", and the battery continued to drain.
Over the next hour or so I tried many things like shutting down, waiting, new A/C outlet, new power settings, etc. Tried the little reset hole on the bottom of the laptop. Nothing mattered... the little blue light is on, but the battery just drains.
Eventually, the battery drained and the X1 shut down. When I try to boot, I get a pre-boot message about a critical low power error, even plugged in, so my laptop is now a brick.This is a 3448-34U Thinkpad Carbon X1.
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Dec 21, 2013
I have an AC adapter left over from my first generation X1 Carbon. It is 90W/20V. The adapter that came with the new machine is quite a bit smaller, and only 65W/20V. Can I use the 90 watt adapter with the new model X1, or will it damage it somehow? Dont want to ruin my brand new computer.
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Jan 16, 2010
http://www.sierrawireless.com/product/mc8700.aspx
HSPA+ MC8700 PCI Express Mini Card
Works fine in my sxps 1340's wwan slot btw.. drivers are just latest version of sierra watcher software.
recent speedtest using Telus HSPA+ , this was in my office in downtown edmonton earlier this evening;
ping: 28ms download: 12.83Mb/s upload: 2.76Mb/s
excellent speeds for internet on-the-go
I chose this card because it is capable of full HSPA+ speeds (Peak downlink speeds up to 21 Mbps and peak uplink speeds up to 5.76 Mbps) .. Dell's current WWAN cards are just not fast enough, lol
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Nov 9, 2014
I have newly bought a x1 carbon with 8g memory and i7 4660u, system win7 4 bites, the model is 20A7 CTO1WW, I didn't choose the high resolution screen because I think it is not neccessary.
But the usable momery is only 3.08gb, i am very confused and don't know what is the problem. Is it because the mainboard doesn't support 8g memory?
Here is the picture of system information.
But the usable momery is only 3.08gb... Is it because the mainboard doesn't support 8g memory?
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Apr 3, 2014
I currently have an issue with my original X1 Carbon (2012, 3443-CTU) light not working on the LCD. I attached an external monitor to the laptop and it works without issues so it's not the motherboard. Under the right lighting conditions and angle, i can see very very faintly my desktop background.
This leads me to believe that the screen inverter is damaged, or the lcd. Since my ultrabook isn't under warranty, i believe the best course of action is to find the screen on ebay and replace it. [URL] ....
Is replacing the LCD as easy as it sounds? It looks like i need to remove much of the parts underneath the keyboard panel, and remove the LCD bezel and replace the screen. Is there something i'm missing?
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Jan 27, 2012
Just got my new x1 carbon, and I like it alot, trackpad isn't as bad as everyone is complaining about. However one big issue is that I want to keep the Function row on by default, and only switch to the default one with volume controls if I press the FN button to do so. Right now no matter even if I chose not to show the default keys, with volume and cloud and all that, it still comes back anytime I switch to a different app.
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Feb 11, 2015
[URL]
The label on the charger says:
MODEL 45N0261
FRU P/N 45N0262
Lenovo P/N 36200253
It was advertised as X1 charger, but when it arrived I thought it's too small in size, so I googled it. Having done that, I've realised it's actually being sold by Lenovo as a charger for Yoga.
Am I safe to use this charger for my ThinkPad X1 Carbon (3460-CLG)?
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Nov 27, 2013
Bought a unit with this problem: As soon as I unplug the AC Cord from the laptop, it power off without notice and can't power up the laptop. It seems like the battery is not giving power .When I plug back in the AC, I can press the power button.
One strange thing is that the battery is 100%, state : good. Tried the reset battery so now 3 cycle counts. The thing is that if I unplug the AC cord only from the power outlet to the ac adaptor then the power is still up, the brightness goes down a bit and then power off without notice.
Tried:
- the battery pack switch
- removed battery backup
- removed and reset the battery pack
I'm out of options and I would be glad if I can find what cause that "unswitchable thing".
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Nov 24, 2013
When I plug in the AC adapter, my x1 shuts off right away. I have to reset the time in the bios to get it to work again. This happened right after I changed the keyboard. Now, it seems to be permanent issue. I thought it was an adapter issue but I have two adapters and both work fine.
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Dec 17, 2012
Have a brand new X1 Carbon running windows 7. It originally came with Windows 8 but had to downgrade to run a necessary work application (which could be the problem). My battery never exceeds 50% even when plugged in for extended periods. Also, I am not seeing any of the "Rapid Charge" that was promoted.
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Apr 22, 2014
I recently put Windows 7 64 bit Enterprise on a brand new X1 Carbon Model 20A7-CTO1WW and I have a missing unknown device in device manager and when I searched for it I came across nothing for the X1 Carbon I found posts on here for X240. The little research I did I did see someone mentioned it could be the fingerprint scanner. Tried that and it did not work. Also Ran system update and that did not work....
Here is the hardware ID : USBVID_138A&PID_0017&REV_0078
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Sep 25, 2014
I am trying to install windows 8 from the 3 disks that came with the X1 Carbon. There is no DVD drive and we have no external disk drive, so I need to create a bootable USB for this. The laptop came with windows 7 on it.
It is easy to use DISKPART to ready the USB as a bootable device, but how to I take the data from the 3 DVDs and put it onto the USB so that it works? The first one only has drivers but the OS install is split onto two disks. I referred to a KB article but it was talking about autorun files that are not present on these DVDs.
The DVDs I have are labeled as
(1) Applications and Drivers Recovery Disk,
(2) OS Recovery Disk Windows 8 Pro [Disk 1 of 2], and (2) OS Recovery Disk Windows 8 Pro [Disk 2 of 2].
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Mar 8, 2014
where is the printscreen button on the X1 carbon ? Where is the insert botton ?
The keyboard of the X1 Carbon is non standard compliant. The person who took keyboard classes and efficient at typing becomes inhibited with these changes The End botton is close to the A key which is usually the spot for the Caps Lock
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Apr 25, 2014
My ThinkPad X1 Carbon keep dropping the WiFi randomly. I have another computer, HP. This kind of situation never occur to my HP. So I am sure this problem does not relate to my router.
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Feb 9, 2015
I recently purchased a Lenovo X1 carbon, the weird thing is that the computer functions correctly when the power cord is plugged but when the power cord is unplugged the computer DOES NOT turn off no matter what you do. It restarts all the time. If you plug the power cord you can turn off your computer, but when you unplug it it starts working immediately?
In any case pushed the reset button on the back of the laptop but it didn't worked.
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Apr 25, 2014
My X1 Carbon started running super slow since last week. The disk C: shows I still have 49.2 GB free space to use. So I think the problem does not relate to the space size. I am wondering if there is any way to clear something in my computer and make it run as fast as before.
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Jan 26, 2014
I recently received X240 and new X1 Carbon (Gen2) laptops with the 256GB eDrive and am working to set up Bitlocker using Windows 8.1.
On the X240, I followed the steps in another posting here and successfully got hardware AES working (by manually installing chipset on newly installed OS, then installed everything except RST and Bitlocker worked with the eDrive).
Following the same process on the new X1 Carbon, however, I only am able to use software encryption and can't figure out what to do to use the eDrive feature.
Is there a process to follow on the new X1 Carbon Gen 2?
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Feb 17, 2014
if Power Manager is available for New X1 Carbon (Window 8.1, 64bits)? So far not available, right?
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Jul 2, 2014
I just received my Lenovo X1 Carbon; it's a very good product and I really like it. Everything is working as expected (fast & smooth) except one thing: laptop works kinda strange with the closed lid
My product code is 20A70037US, I'm running Windows 8.1 Pro.
I've chosen (in power options) that laptop does nothing when lid is closed. Yes, it works but... I'm using TeamViewer to connect to laptop; it works but TeamViewer periodically loses connection and displays message "The screen can't be captured at this moment..", Microsoft installer (I'm installing Visual Studio 2013) is paused (!), and Google Chrome won't render pages (but Internet Explorer works fine).
If I open the lid, all symptoms described above are disappear: installer resumes downloading, Chrome render html pages correctly and TeamViewer works fine (no periodical messages shown).
For me it looks like laptop not in "normal" operational state but kinda under power saving.
I've set power option to "High performance" (laptop is plugged) but it doesn't work.
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Jul 24, 2014
On my new X1 Carbon, with a new Netgear R8000 router, The X1 will not hold a wifi connection, even 3 feet from the router. There is plenty of signal strength on all 3 channels. It connects for a while, but then the icon turns to "limited", and I have no internet connection. It works with my older Netgear WNDR 4500. Xirrus Wi-Fi Inspector sees the three channels with plenty of signal, but will not plot them. I even tried reducing the maximum rate to 289 Mbps, and it still will not maintain a 5 GHz connection.
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