Surface 3 LTE
I was a victim of (yet another) bad Microsoft Windows Update for Surface that wreaked havoc with wireless connectivity, cellular, and bluetooth. In addition to the inappropriate Surface Pen driver forced on unsuspecting SP3 users. Surface 3 LTE users also received a nasty surprise.
Symptoms were coming back from hibernate, etc. I’d lose connectivity, WiFi would disappear, cellular would disappear, Bluetooth would disappear. Device manager would cycle through some weird messages when I checked the properties of the modem adapter and the wifi adapter, ending with Code 38. Bluetooth would be missing. Here’s what the cellular modem driver looked like in Device Manager.
EDIT: Microsoft has posted a KB and link to request a hotfix https://support.microsoft.com/en-us/kb/3138639. The hotfix leads to a requestable fix that is incorrectly labeled as for Surface PRO 3 and not Surface 3 LTE. You’ll get a MSI that you can run to re-install the correct driver.
If you want to fix it manually, steps are below. It’s what I did and it works.
1. Download the driver ZIP file for your device:
http://www.microsoft.com/en-us/download/details.aspx?id=49039 Surface 3 LTE ATT
http://www.microsoft.com/en-us/download/details.aspx?id=49037 Surface 3 LTE North America Carrier Unlocked Surface3_4GLTE-NorthAmericaUnlocked_Win10_151109_0.zip
http://www.microsoft.com/en-us/download/details.aspx?id=49041 Surface 3 LTE Outside of North America and Y!mobile Japan
2. Extract the Zip file and make a note of where it is exactly.
3. Open device manager and find System Devices and expand the tree. Scroll down through lots of entries and find Surface CoSAR.
4. Right Click/press and hold Surface CoSAR to display the Properties window and select Driver, Update Driver.
5. You need to use the force install, Browse your computer, Have disk process. Select Have Disk and then Next.
6. Now you need to navigate to where you extracted the Zip file. You’ll find the needed driver in the \Drivers\MOBB\SurfaceCoSarDriver folder – see screen shot below. (SurfaceCoSARDriver.inf). This is the driver you need to install.
7. After successful install, restart your Surface 3 LTE.
I received this information on the cause being the CoSAR driver from Microsoft Engineering last night. So far, after implementing this fix, things are back to normal. Note, I also rolled back the Marvell wifi driver from .59 to .47 because .47 performs better for me.
If you use my process above, please let me know on Twitter @barbbowman if this resolves your issue.
This post provides the steps to activate an unlocked Surface 3 LTE for consumer/retail/soho customers who have Verizon as a carrier who are not eligible for a business package from Verizon. The unlocked Surface LTE is only available to business customers with a 5 line minimum commitment and two year contract. https://ecomm.verizonwireless.com/commerce/servlet/en/verizon/devices/devices-tablet/microsoft-surface-3. This article shows you how to activate a single unlocked Surface 3 LTE.
Ever since I first heard about the Surface 3 with LTE, I was chomping at the bit to replace my Nokia Lumia 2520 with a better Windows tablet that included cellular capabilities. When I heard that the first devices would be AT&T only, and then T-Mobile I was disappointed. Then I heard about an unlocked version. When that unlocked SKU became available in mid September, I asked about Verizon. I couldn’t get an authoritative answer, but was told that a VZW specific model was coming. So I waited.
On November 12, I saw an announcement that Verizon was finally selling a VZW Surface 3 SKU. http://www.verizonwireless.com/news/article/2015/11/microsoft-surface-3-with-verizon-4g-lte-now-available-for-business-professionals.html. I tried to order online, but found that it was business customers only. Five lines, five devices. I called and was told the same thing. As a consumer, no chance. Needless to say, I was not a happy camper.
I decided LTE was LTE and that just had to be a way to get an unlocked Surface 3 LTE working on the VZW network. And I followed my instincts. Here are the steps. Don’t skip any.
1. Go to a Verizon company owned Store (not an agent)
2. They’ll need to add an unauthorized device to your account/plan (or swap out one that is already there).
3. They need to make a NANO SIM.
4. They need to place this NANO SIM in their demo iPad and activate it.
5. They need to turn WiFi OFF on the demo iPad and wait for the SIM to activate on the network and verify by successfully browsing the web. Making the connection to the Internet with the activated SIM is a critical step. Don’t let the VZW tech tell you this is not needed.
6. Completely turn off your Surface 3.
7. Put the NANO SIM in the Sim tray and slide into your Surface 3.
8. Turn on the Surface 3.
On the Surface 3.
1. Open Settings, Network and Internet and turn Cellular ON if it is off. You should turn Wi-Fi off temporarily to test your LTE connection
2. You may need to wait a few minutes, but as long as you or the VZW tech followed the first 5 steps above, you should get connected to Verizon’s LTE network. You’ll see an icon in the task tray indicating signal strength and should be able to visually confirm your connection in the Action Center.
Network and Internet, Cellular will show Connected as well.
If the above doesn’t work (it really should), a few things you can check:
1. If Network and Internet, Cellular does NOT show Verizon Wireless (LTE), turn on Wi-Fi.
2. Tap the signal strength icon. This should let you access the info online about the SIM and the device. I’ve removed so PII from the screenshot below, but the important pieces are there. Under Network Mode, insure that it shows LTE and APN is set to vzwinternet. If it isn’t, get Verizon to make a new NANO SIM. A partially activated SIM might show GSM as the Network Mode.
3. If you tap the Network Settings box above, on a successfully activated and working connection, the Network Type may show as Global. This is OK.
Verizon employees don’t have much experience with this and you can print this article out so they have a reference. Don’t let them tell you they have to send your device IMEI and other info in to a special team to be added to a database of devices. It isn’t needed and won’t help.
I hope this is helpful. If you’ve used this to get an unlocked Surface 3 online, let me know on Twitter @barbbowman. Enjoy