Fix it in minutes — step-by-step guides from our engineers

হাজিরা মেশিন, CCTV, লক, IP Phone — সাধারণ সমস্যার সমাধান নিজেই করুন

Tested fixes for the access control, CCTV, entrance, IP telephony and PA systems we supply. Every guide shows the exact menu path, what you should see, and when to stop and call us.

1guide live
1 of 7product categories covered
English + বাংলাevery guide has both
11 Nov 2026last verified on a device

What are you fixing?

Pick a product category, or search above. New guides are added every week from the questions our support team answers most.

Attendance & Access Control

Fingerprint, face, card terminals, BioTime

Guides coming soon

Entrance & Parking

Turnstiles, flap barriers, boom barriers

Guides coming soon

Door Locks & Exit

EM locks, exit buttons, smart locks

Guides coming soon

IP Telephony

IP phones, IP-PBX, SIP accounts

Guides coming soon

PA & Sound

Amplifiers, speakers, microphones

Guides coming soon

Network & PoE

Switches, PoE power, cabling

Guides coming soon

Most-asked problems

Ordered by how often our engineers are asked. Guides marked with a play badge have a video walkthrough.

Watch it done on a real device

Recorded by our engineers. Subscribe on YouTube for new fixes every week.

DVR / NVR shows offline in the mobile app (Hik-Connect, DMSS)

Video and written steps on the guide page

All videos on YouTube

Still stuck? Talk to an engineer.

Send the model, serial number and a photo of the error. We reply on WhatsApp during business hours.

About quick fixes

Are these quick fixes free to use?

Yes. Every guide is free and written by DigiMark Solution engineers for the products we supply and support in Bangladesh.

Will following a quick fix void my warranty?

No. The guides only use settings and checks the manufacturer allows. Each guide marks the point where you should stop and contact us; opening the device or changing firmware yourself can void the warranty.

My problem is not listed. What should I do?

Submit a request on the Technical Support page or WhatsApp +880 1979-234342 with the model and serial number. Our engineers respond within business hours, and common new issues are added to this hub.

Do you support products bought from other sellers?

We prioritise products supplied through DigiMark and our dealers. For other units, send the serial number first so we can check the source and warranty.