[General Topics] TheTechDude48:
I am debating whether or not to post this here, on Howard Forums or on CDMA Gurus, but I'll post it here as this forum seems the most popular and has a great SEO so hopefully someone googling how to do this will see this thread and find it helpful.

This summer I picked up a used Verizon Samsung SCH-LC11 hotspot. It is surprisingly small and lightweight but heavy and feels high quality.

I was surprised to see the built in web interface didn't have a software update button, nor any options to change APN settings and so on. I searched Google and couldn't find ANYTHING initially on how to do this, but found that there was a software update which mine didn't have that gave it the ability to choose LTE only, 3G CDMA only, and so on, which I thought would be nice to have. After a lot of digging, I finally found out how to do this.

First you'll need to install the latest Samsung USB drivers from here https://developer.samsung.com/mobile/android-usb-driver.html

Once that is done, you'll need to download the Samsung firmware update utility for this hotspot which can be found here

Verizon: https://www.samsung.com/us/support/downloads/?model=N0020110&modelCode=SCH-LC11ZKAVZW

US Cellular: https://www.samsung.com/us/support/downloads/?model=N0020124&modelCode=SCH-LC11ZKAUSC

Download the one listed as "PATCH,OTHERS" and run it, and follow the instructions, once that's done you should now be on the latest firmware!

This next one is something that initially was reported as impossible, changing the APN settings. There is nowhere in the web menu to do this and when you plug this device into your computer nothing happens.

After months of searching though, I finally found a thread on CDMA Gurus related to flashing and doing more involved things with this hotspot, and this showed how to enable debugging mode!

To do so you'll need to power your hotspot on and connect to it's wifi network, and then head to the admin page at http://192.168.1.1/ and login with the wifi password found on the sticker underneath the battery cover. If your sticker is missing the password is the last 8 digits of your IMEI, ignoring the last digit of the IMEI. For example if your IMEI is 123456789123456 your password is 78912345.

Once you're logged into the admin page go to http://192.168.1.1/selectusbmode.html and enable USB debug mode and click Save. Then go into "Configuration" and "Diagnostics" and click restart and connect the hotspot to your computer via USB. You should hear the device connect sound.

Now you'll need to use a program called AT Command Tester available at https://m2msupport.net/m2msupport/download-at-command-tester/ as we will set the new APN of your choice using AT commands, and this program let's you do that all through a simple, easy to use GUI.

You will need the latest version of Java installed on your computer as AT Command Tester requires Java to run, you can obtain the latest Java here https://www.java.com/download/ie_manual.jsp

Once you have the latest version of Java installed and have downloaded and installed AT Command Tester, open up your start menu and launch AT Command Tester, if this doesn't work navigate to C:\Program Files (x86)\AT Command Tester and run "atc.bat"

You should see AT Command Tester open, and now you'll need to establish a connection to the Samsung hotspot. Click on "Find Ports" and wait, now you should see 3 COM ports available from the dropdown selection list, in my case it was COM16, COM17 and COM18 and the one I needed to use was COM16, however yours may vary and you may need to try each one until you establish a connection, I'd recommend trying the lowest numbered one in the list. Once you have selected the proper COM port click "Connect" and in the log in the right you should see it detect the hotspot and list Qualcomm as the device type.

Now you can follow the instructions here for setting up the APN https://m2msupport.net/m2msupport/how-to-setup-access-point-network-apn-in-cellular-modules/ and once you have set the proper APN you can restart your hotspot and you should have everything working!

If you for some reason need to change other settings, you can use DFS Qualcomm Tool to do so. This device will also be detectable via QPST and CDMA Workshop too.