Unlocking your Huawei B311221 with exclusive firmware exists in a legal gray area. In the United States, the DMCA allows unlocking of wireless devices (Library of Congress ruling, 2021). In the UK and EU, it is legal if the device is out of contract.

However, using unlocked firmware to steal unlimited data or bypass fair usage policies is unethical and will likely lead to carrier blacklisting of your IMEI.

The intended use of this guide is to allow consumers to use cheaper SIM cards while traveling, switch to a better local provider, or access features that carriers wrongly disabled.


The router will reboot automatically. Do not unplug the power or the LAN cable. The lights on the router will flash. Wait until the router fully restarts and the signal bars stabilize.

Pro Tip: Before flashing, create a full backup of your stock firmware using a TL866 programmer or dd via telnet. This is your "lifeline."


You will find hundreds of sketchy Google Drive links. Do not use them. Here are the legitimate methods.

A quick Google search for "Huawei router b311221 unlock firmware exclusive" will return 100 scam sites charging $50 for fake files. Here is where the real community shares them:

Avoid: YouTube videos that ask for your router's serial number. They will sell your data.


The Huawei B311-221 is a popular 4G Category 6 router, capable of LTE Carrier Aggregation (up to 300 Mbps download). It is widely distributed by mobile carriers (e.g., T-Mobile, Vodafone, Telstra, Smart, Globe) as a locked device—restricting users to specific SIM cards or disabling advanced configuration options (e.g., band locking, TTL modification, APN editing).

This report investigates the emergence of “unlock firmware” and “exclusive” modified firmware images aimed at removing these restrictions.

Feedback form for patients

Данная форма не предназначена для записи на консультацию, не предназначена для заочной консультации.

APPOINTMENTS for consultation are carried out BY PHONE ONLY:

+7 (800) 775-05-82 and +7 (495) 612-45-51 (Mon—Fri: from 8:00 to 20:00)

Заочная консультация не осуществляется. Консультация пациентов производится только очно при личном посещении пациента. Медицинское заключение выдается только на основании очной консультации.

You can attach additional documents or materials in electronic format to help better describe the nature of your appeal. The size of the attachment file cannot exceed 4 MB. The following file formats are allowed for attachments: txt, doc, rtf, xls, pps, ppt, pdf, jpg, bmp, png, tiff, gif, pcx, mp3, wma, avi, mp4, wmv, mov, flv.

Feedback form for donors

You can attach additional documents or materials in electronic format to help better describe the nature of your appeal. The size of the attachment file cannot exceed 4 MB. The following file formats are allowed for attachments: txt, doc, rtf, xls, pps, ppt, pdf, jpg, bmp, png, tiff, gif, pcx, mp3, wma, avi, mp4, wmv, mov, flv.

Feedback form to the admissions committee

You can attach additional documents or materials in electronic format to help better describe the nature of your appeal. The size of the attachment file cannot exceed 4 MB. The following file formats are allowed for attachments: txt, doc, rtf, xls, pps, ppt, pdf, jpg, bmp, png, tiff, gif, pcx, mp3, wma, avi, mp4, wmv, mov, flv.

Feedback form to the director

You can attach additional documents or materials in electronic format to help better describe the nature of your appeal. The size of the attachment file cannot exceed 4 MB. The following file formats are allowed for attachments: txt, doc, rtf, xls, pps, ppt, pdf, jpg, bmp, png, tiff, gif, pcx, mp3, wma, avi, mp4, wmv, mov, flv.

Report corruption

You can attach additional documents or materials in electronic format to help better describe the nature of your appeal. The size of the attachment file cannot exceed 4 MB. The following file formats are allowed for attachments: txt, doc, rtf, xls, pps, ppt, pdf, jpg, bmp, png, tiff, gif, pcx, mp3, wma, avi, mp4, wmv, mov, flv.

Message the press office

You can attach additional documents or materials in electronic format to help better describe the nature of your appeal. The size of the attachment file cannot exceed 4 MB. The following file formats are allowed for attachments: txt, doc, rtf, xls, pps, ppt, pdf, jpg, bmp, png, tiff, gif, pcx, mp3, wma, avi, mp4, wmv, mov, flv.

Contact web support

Форма предназначена для комментариев о функционировании официального сайта НМИЦ гематологии

You can attach additional documents or materials in electronic format to help better describe the nature of your appeal. The size of the attachment file cannot exceed 4 MB. The following file formats are allowed for attachments: txt, doc, rtf, xls, pps, ppt, pdf, jpg, bmp, png, tiff, gif, pcx, mp3, wma, avi, mp4, wmv, mov, flv.

Review

You can attach additional documents or materials in electronic format to help better describe the nature of your appeal. The size of the attachment file cannot exceed 4 MB. The following file formats are allowed for attachments: txt, doc, rtf, xls, pps, ppt, pdf, jpg, bmp, png, tiff, gif, pcx, mp3, wma, avi, mp4, wmv, mov, flv.

Request for medical documents

This form is intended only for sending an application for the issuance of medical reports, certificates, extracts and other medical documents for patients who have passed an in-person medical examination.

Correspondence consultations are not carried out. A medical report is issued only on the basis of a face-to-face consultation.

Without an attached application, passport and a document confirming the status of a legal representative, the feedback form cannot be sent.

Learn more about the procedure for issuing medical documents and their copies

Download the application form

Attach files (each attachment not exceeding 4 MB) (the feedback form cannot be sent without attached documents)

You can attach additional documents or materials in electronic format to help better describe the nature of your appeal. The size of the attachment file cannot exceed 4 MB. The following file formats are allowed for attachments: txt, doc, rtf, xls, pps, ppt, pdf, jpg, bmp, png, tiff, gif, pcx, mp3, wma, avi, mp4, wmv, mov, flv.

FEEDBACK FORM FOR PATIENTS
+7

    You can attach additional documents or materials in electronic format to help better describe the nature of your appeal. The size of the attachment file cannot exceed 4 MB. The following file formats are allowed for attachments: txt, doc, rtf, xls, pps, ppt, pdf, jpg, bmp, png, tiff, gif, pcx, mp3, wma, avi, mp4, wmv, mov, flv.

    Запрос медицинских документов - Тест

    This form is intended only for sending an application for the issuance of medical reports, certificates, extracts and other medical documents for patients who have passed an in-person medical examination.

    Correspondence consultations are not carried out. A medical report is issued only on the basis of a face-to-face consultation.

    Without an attached application, passport and a document confirming the status of a legal representative, the feedback form cannot be sent.

    Learn more about the procedure for issuing medical documents and their copies

    Download the application form

    Attach files (each attachment not exceeding 4 MB) (the feedback form cannot be sent without attached documents)

    You can attach additional documents or materials in electronic format to help better describe the nature of your appeal. The size of the attachment file cannot exceed 4 MB. The following file formats are allowed for attachments: txt, doc, rtf, xls, pps, ppt, pdf, jpg, bmp, png, tiff, gif, pcx, mp3, wma, avi, mp4, wmv, mov, flv.

    Тестовая форма

    You can attach additional documents or materials in electronic format to help better describe the nature of your appeal. The size of the attachment file cannot exceed 4 MB. The following file formats are allowed for attachments: txt, doc, rtf, xls, pps, ppt, pdf, jpg, bmp, png, tiff, gif, pcx, mp3, wma, avi, mp4, wmv, mov, flv.

    Тестовая форма - Отзыв

    You can attach additional documents or materials in electronic format to help better describe the nature of your appeal. The size of the attachment file cannot exceed 4 MB. The following file formats are allowed for attachments: txt, doc, rtf, xls, pps, ppt, pdf, jpg, bmp, png, tiff, gif, pcx, mp3, wma, avi, mp4, wmv, mov, flv.