We are happy to announce the release our new free solution for preview and monitoring – JMultiViewer Free. The solution is available for free download and usage for both commercial and non-commercial purposes.
JMultiViewer Free with up to 4 channels preview and monitoring
JMultiViewer Free is targeted to small production and delivery organizations, where it can be freely used for monitoring and detection of input loses and freezes.
The solution supports different input interfaces, such as: NDI®, SD-SDI, HD-SDI, 6G-SDI, HDMI, Composite and Component. With JMultiViewer Free any NewTek NDI® compliant source solution output can be monitored. As for the rest of the interfaces, any BlackMagic capture card can be used.
JMultiViewer Free offers preview and monitoring of up to 4 channels of different kind. The free solution also provides detection of black and freeze video frames, audio silence and noise as well as signal lost. JMultiViewer Free reports all error detections via e-mail, sound alarm or visually in the solution interface. Furthermore, detailed log of all error detections is available. The free version also provides REST API server, which allows integration of with any third party solution.
The freeware version of JMultiViewer is a restricted version of the standard full version of JMultiViewer, where the only limitation of number of input channels are the available system resources. The full version also offers wide variety of IP inputs as well as audio and video codec support.
Coming soon: More great features are already in development.
Stay tuned for our future updates and new releases.
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Qpst Sahara Memory Dump ❲Essential – 2024❳
Obtaining raw memory maps helps developers create low-level backup scripts and unbricking tools for obscure devices.
Report ID: TIR-MDM-2026-01
Subject: Qualcomm QPST Sahara Protocol Memory Dump
Date: April 19, 2026
Author: Embedded Systems Security Team qpst sahara memory dump
HOST -> DEV: HELLO (0x01, ver=2, mode=0x01)
DEV -> HOST: HELLO_RESP (0x02, status=0, ver=2)
HOST -> DEV: READ_MEMORY (0x10, addr=0x80000000, len=0x1000)
DEV -> HOST: DATA (0x12, len=0x1000, <binary>)
HOST -> DEV: DONE (0x04)
| Region | Description | Sensitivity | |--------|-------------|--------------| | Boot ROM (mask ROM) | Immutable boot code | Low | | On-chip RAM (OCIMEM) | Early boot stack, certificates | High | | DDR SDRAM | Full system RAM (if dumped post-boot) | Critical | | TZ (TrustZone) memory | Secure OS, keys, DRM | Extremely High | | Modem memory | Baseband firmware, IMEI, radio calibration | High | Obtaining raw memory maps helps developers create low-level
| Error Message | Cause | Fix |
|---------------|-------|-----|
| Sahara protocol error 0x12 | Loader not signed or wrong chipset | Find exact loader for your SoC (e.g., MSM8998) |
| Firehose: receive packet failed | USB cable or driver latency | Use USB 2.0 port, short cable, reinstall drivers |
| Memory address out of range | Start address not in RAM map | Check bootloader logs; try 0x80000000, 0x81000000, or 0x82000000 |
| No response from Sahara | Device not in EDL deep | Force EDL via test points or deep flash cable | DEV: HELLO (0x01
