• Existstwo models of modems E3372: E3372 s and E3372 h . They are built on different platforms, firmware from one will not fit the other. Model E3372 h newer and E3372 s already out of production.
  
• There are two types of firmware:Stick and Hilink . With the Stick's firmware, the modem will be seen as an AT-modem, to connect to the Internet you need to "dial". With HiLink firmware, the modem is represented by an Ethernet network card and does not require any configuration in the OS.
  
• For E3372h modems, the serial number starts atG4P and B6k , and at E3372s - L8f . More precisely, your modem can define like this . You can not flash E3372h firmware from E3372s - get a brick. However, she herself will not go - will give an error. Is that under pressure ...
  
• If you have E3372h and firmware on your modem from 2x.200.15.xx.xx to (not including!) 2x.317.xx.xx.xx, then send the command AT ^ SFM = 1 before the firmware, otherwise you will get error 19 ( Moreover, 2x.200.15.xx.xx and above can not be removed from the download mode, you will have to alter using the needle method or look for your firmware on the network and sew on it)
  
• If the modem has stopped seeing the network, or has become unknown or an ADB device it means the flash is broken. You can fix it like this .
  
• The modem is not compatible with Kaspersky products! The muzzle is unavailable from it, disabling does not help, only delete ! Before buying a modem, think about whether you are ready to abandon this product.
  
• The firmware flasher and boot loader (the one used for the needle) under macOS can be foundhere. There is no need to resort to virtualka, and it is dangerous. Also, balong_flash'em can remove the modem from boot mode (switch -r).
  
• Formodem works with HiLink firmware in Windows 10 Version 1709 patch required KB4051963 and update the driver through the device manager
  
• Change the MAC address is not possible

First you need to start by readingRules of the topic, especially the sub-spoiler "Useful info for help" - in order to know what information to provide in case of problems, to know how to ask a question, to know what you shouldn’t ask, etc.Without DC-Unlcoker log and device manager screen with expanded categories from that spoiler, messages will be deleted without warning!
Next, readImportant information- to learn about important nuances and how not to get to the elementary error.

Further, if you just need an unlock, then in this post there is a spoiler "Modem unlocking"(a little running ahead, I will say that most likely" just unlock "will not work, all current models come with strong protection, which is the easiest to defeat with firmware)
And if you need to flash / upgrade the modem, then in the Important Information there is a link to the instructions for the firmware in HiLink and Stick.
In case you need to flash the modem "under the phone" and "so that the operator does not burn the distribution", then there is a FAQdetailed instructionsI.

I would also like to note that there are no such concepts as “flash under mts”, “flash under the beeline”, etc. You will simply not be understood if you ask to flash under some kind of operator.

Also, I present to the attention of a small glossary with local slang and terms:

Supported ranges:
GSM / EDGE / EVDO / LTE / FDD / TDD / UMTS
The speed of data reception modem up to 150 Mbps,
Data transfer rate - up to 50 Mbps

Supported frequencies
GSM / GPRS / EDGE 850/900/1800/1900
UMTS / DC-HSPA + / WCDMA 900/2100
LTE 800/900/1800/2100/2600 MHz

Additionally
MicroSD card support up to 32 GB

External antenna
The type of connector of the external antenna is CRC9, which, in the huawei terminology, is TS-5.
The modem has 2 antenna connectors (for MIMO antennas), a single antenna connects to the connector closest to USB

Operating Systems:
Support for Windows XP SP3, Windows Vista SP1 / SP2, Windows 7, Windows 8, Mac OS X 10.5, 10.6, 10.7, 10.8, Linux

Link to the product page on the manufacturer's website
http: //consumer.huawei…s/tech-specs/e3372.htm

For this modem, there are 2 fundamentally different types of firmware - STICK and HILINK. Firmware interchangeable, that is, in any modem you can flash any firmware. The following describes their features and provides links to the firmware files.

The following commands mainly refer to stick modems. Hilink modems are configured via a web interface, and under normal conditions they do not have an AT command port in the configuration at all. Some commands require the release of a command lock (datalock) using the at ^ datalock comand. This will be noted in the description of specific commands.

The modem is built on the Hisilicon hi6930 chip (Balong v7r2). This chip has in its composition 2 processor cores ARM7. Each processor core runs on its own operating system.
Core 0, at the start of the modem is turned on, running Android 2.3 (kernel Linux v3.4.5). System environment is a stripped-down version Android - without the Dalvik virtual machine. Linux kernel itself is almost completely corresponds to the standard kernel of Android, but has been compiled propietarnye additional modules developed by Huawei - for example, the processor of AT-commands. Furthermore bootstrapping modem AT command processing in the firmware HILINK-linux-modem part of the network stack and supports the work WEB-server.
Kernel 1 is managed by the VxWorks v6.8 real-time operating system. This OS directly manages the radio module and interacts with the cellular network. VxWorks is launched using a special subsystem built into the Linux kernel.
Thus, in the modem operate simultaneously two operating systems. They can interact with each other via ICC subsystem, transmitting a specially formed data packets from one OS to another. ICC contains the debugging tools, allowing you, if desired, to consider in detail the interaction of VxWorks and Linux. Each operating system is composed of a shell, which allows to communicate and give a command OS. Next I'll show you how to access the command line of the operating system.
The easiest way to access the command line is the Linux part of the modem in HILINK firmware. To do this, it is enough to flash the modified firmware from this topic. This firmware allows access to the Linux shell via telnet and adb.
telnet:

adb:

Access via the Android debugger ADB also allows you to transfer and receive files from the internal file system of the modem.

If you have a modem with stick-firmware, or standard (unmodified) HILINK-firmware, then the above methods will not work. In addition, these methods do not allow access to the VxWorks console. Therefore, we consider a more universal method, originally incorporated into the modem by the manufacturer - the A-shell and C-shell ports. Both of these ports are USB-serial devices that are included in the USB-modem compression mode DebugMode. The first one is the Linux console, the second is the VxWorks console.
First you need to get access to the command AT-port of the modem. In stick firmware, this port is available immediately - this is the very first port (/ dev / ttyUSB0). In standard HILINK firmware, the AT port is not available by default. To open access to this port, you need to flash the modified web interface, and then go to the browser at this address:

This will switch the modem to debug mode - now, in addition to the network interface, 6 serial ports are also available. The very first of them will be the command AT-port. Now you need to enter any terminalka on this port, and enter the following AT commands:

The password in the ^ spword command is a code calculated according to the usual algorithm of v201, but from an IMEI modem deployed backwards. In the calculator for this there is a button Reverse. After entering the commands, the modem reboots.
For a HILINK modem, you should again switch to debug mode via the WEB interface, as I wrote above. As a result, the modem will have 6 serial ports:


For a stick-modem, you will have to enter into the list of available ports (using the ^ setport command) two additional ports - with numbers 5 and A, for example:

As a result, the modem will have 4 serial ports:

The Linux console port is the primary system console (/ dev / console), for which all kernel system messages are issued. Shell there is installed the Android toolbox by default, which is extremely inconvenient in operation. To make your life easier, enter the command:

after which the shell will become busybox and a normal command line editor will appear.
VxWorks also has 2 shells - C-shell (installed by default) and CMD (set by the cmd command). Which one is more convenient is a matter of taste. In both shells there is a help command, and more detailed information on working with the VxWorks command line can be obtained from this document -http://read.pudn.com/d...ls_users_guide_6.2.pdf
Access to the modem OS consoles opens up the broadest prospects for a deep study of the modem code and its hidden capabilities. For lovers of poking around in the code, this is just a bonanza. I want to warn all the others - thoughtless input of commands in consoles can lead to negative consequences - from the hangup of the modem to the destruction of important data structures on the flush and the complete loss of performance. Be careful!

Huawei DataCard Driver- the most basic driver
HiLink port driver
Switch for HiLink (MobileBrServ)
Alternative switch for HiLink- not recommended for use
Manage switching to a secondary, working USB-song in Windows
ADB drivers
Drivers + software to control the sub macOS

Balong USB Downloader fromDecker - Utility for emergency USB-loading modems on the Balong V7R2 and V7R11 chipset
Switch program fromrust3028

To begin with, this modem has a v4 unlock algorithm, which means the code is not generated by IMEI.

First of all, determine the firmware version of your modem.
The easiest modem withancient firmware (2x.180) unlock AT command:

You can also use specials. calculators:
Calculator for E3372h
Calculator for E3372h, showing the process, not hanging, able to take the necessary data from the modem and unlock it
Translated (Russian, English and Urdu) calculator for E3372h with a custom interface, showing a process that is not hanging, able to take the necessary data from the modem, find the COM port, save information to a file and unlock
Well, or change the code to eight zeros:Change of OEM and SIMLOCK modem codes E3372N

Next, with firmware2x.200.07 (except 21.200.07.0 0 .209) it's getting harder.
AT commands are blocked, which means you will not change or calculate the code, and you will not remove the lock flag in NVRAM. There are two options:

1. Flash on a modified firmware, or older
   
2. Calculate code through needle method

Further - even worse! Starting with firmware2x.200.15 just do not flash it, you need to translate the modem in the Factory Mode by the AT command:

And since2x.317 - and this hole was closed! Starting from 2x.317 there are three options:

• Needle method to upgrade to a modified or old firmware
  
• Needle method to calculate the code
  
• From Huawei there was a flush of keys; in the instructions for the firmware in HiLink, you can find special firmware for flashing on “needle” firmware without pricking.If your not, write in a personal rust3028.

Fortunately, with MTS 22.323, you can roll back to MTSova 21.315, and even though Beeline made a new one, please, without this hole, although not 317, you can also roll back to the old Beeline.

As usual, modems from cellular operators are delivered blocked - they can work only with SIM cards of this operator. The list of plmn-codes allowed for use can be found with the at ^ simlock? Command.
Of course, this situation does not suit us - we want, having bought a modem, to use it with any sim card. For this, the manufacturer laid the opportunity to unlock the modem. This is done by entering the unlock code (nlock-code), calculated by a special tricky algorithm from the IMEI modem. Calculator for calculating codescan be downloaded here (there are versions for windows and linux). To unlock, follow these steps;
- Calculate the unlock code using the above calculator. Of all the codes it calculates, the code v201 is used.
- Insert another SIM card into the modem (SIM card of another cellular provider, not the one who sold you the modem).
- Connect the modem to the computer.
Further, the control program (for stick-modems) or the web interface (for hilink-modems) will ask for the unlock code, which must be entered. All - the modem is unlocked and will work with any sim card.
In addition to entering the code through the program and the web interface, you can also enter it via the AT command. This is especially true for stick-modems under linux. The command looks like this:
at ^ cardlock = "unlock code"
The number of attempts to enter the code is limited to 10 attempts. If the wrong code was entered 10 times, the modem blocks further attempts - more, the at ^ cardlock command will not unblock it, even if you enter it with the correct code. If you still managed to exhaust all input attempts, that's okay - they are easy to recover. This is done by the following commands:
at ^ datalock = "unlock code"
at ^ maxlcktms = 10
10 is the new number of attempts (you can enter any number from 1 to 255). Then you can enter the at ^ cardlock command with the correct code and unlock the modem. This method may work on other 4G modems from huawei.
The lock flag (simlock) is stored in the NVRAM of the modem, in record 8268. In addition, in this record is a flag that allows you to completely disable the unlock code. If your mobile operator turned out to be such a gossip that it set this flag, then all at ^ cardlock commands will be rejected by the modem.
But, as you know, there is no reception against scrap. There is a universal possibility of unlocking the modem by direct recording to nvram by executing the AT command in the Terminal program, joining the modem via the PC UI Interface port or DS Unlock:

The command must be entered carefully, to the nearest comma, so as not to accidentally damage other nvram entries. This method unlocks the modem ALWAYS - with any, including the native sim card, with exhausted input attempts, with the ^ cardlock command blocked ... In general, I do not imagine the condition under which the command would not work.

Dashboard Set
Dashboard Mobile Partner
Dashboard 23.015.05.11.143 (MTS) for 827F / 829F (WIN10 + MAC10.11)(In the post firmware + dashboard, please only for E3372h, dashboards are placed on both E3372s and E3372h)

Disaster recovery of modem 3372S and E3372H firmware
How to close the boot point of the pin with the modem case without disassembling the modem
About the problem of the eternal Fastboot and the fight against it -Part 1, Part 2
Modem recovery by erasing flash partitions via fastboot
Solving the problem with the emergency modem boot port in Windows 8.1
Recovery of E3272 / E3276, E3372s and E3372h modems with HiLink firmware
Removing the modem from boot mode
Scripts for troubleshooting profile issues for E3372s and E3372h
Scripts for opening ports in HiLink