⚙ Firmware Specifications

🔎 SPI Memory Chip Location

SPI 25Q32 memory chip location on the CV309H-A main board

🔧 Common Issues Resolved

The following symptoms on the CONDOR LED32F311 with CV309H-A board are resolved by reflashing the SPI 25Q32 dump:

• Dead TV — No power, no standby LED response after power supply verification
• Boot loop — TV stuck on CONDOR logo screen, continuously restarting
• No display — Backlight is ON but screen remains black with no OSD
• EEPROM corruption — Erratic behavior, random shutdowns, settings not saving
• Channel auto-search failure — Tuner not scanning or storing channels
• No audio output — Picture works but sound is completely absent
• OSD menu freeze — Menu appears but TV becomes unresponsive to remote commands
• Software bricked — Failed USB update leaving the TV non-functional

📋 Diagnostic & Repair Protocol

1. Visual Inspection: Examine the CV309H-A board for burnt components, swollen capacitors, cracked solder joints, or physical damage before proceeding with firmware work.
2. Power Supply Verification: Confirm all voltage rails from the PSU are within specification (5V, 12V, 3.3V). Use a multimeter to test standby and active voltages at the main board connector.
3. Identify the SPI Chip: Locate the 25Q32 SPI flash memory on the CV309H-A board using the reference image above. Verify the chip marking matches 25Q32 (W25Q32, GD25Q32, or equivalent).
4. Desolder the SPI Chip: Carefully remove the 25Q32 chip using a hot air rework station at 320-350 degrees Celsius. Apply flux generously and use tweezers to lift the chip once solder flows.
5. Read & Backup Original Data: Place the chip in the RT809H programmer socket adapter. Read the existing firmware and save it as a backup file before writing new data.
6. Erase the Chip: Perform a full chip erase using the RT809H software. Verify the erase operation completes with zero errors and the chip reads as blank (all 0xFF).
7. Write the Firmware Dump: Load the downloaded CV309H-A SPI dump file into RT809H software. Write the firmware to the 25Q32 chip and verify the write by comparing checksums.
8. Resolder the SPI Chip: Carefully solder the programmed 25Q32 chip back onto the CV309H-A board. Ensure proper pin alignment (pin 1 dot orientation) and clean flux residue with IPA.
9. Power-On Test: Reconnect all cables, panel flex, and power supply. Power on the TV and verify it boots to the home screen with normal display output, audio, and remote response.
10. Final Calibration: Perform initial channel scan setup, adjust picture and audio settings. Run the TV for 30 minutes minimum to confirm stability with no recurring issues.

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