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Nie, dziękuję Przekieruj mnie tamFirmware need please help me
I can help you find the correct firmware, but I need more information first. Flashing the wrong firmware can permanently damage the device or cause problems such as no display, inverted image, wrong colors, non-working remote control, or boot failure.
If your board number is 5800-A9K25G-0P00, this looks more like a TV Android mainboard / OEM TV board, commonly associated with Skyworth/Coocaa-type platforms, not a generic firmware item. The firmware must match the TV model, panel type, board version, and sometimes region.
Please send:
5800-A9K25G-0P00. Without these details, I cannot safely identify the firmware.
Firmware for TV mainboards is not universal. Even if two TVs use the same board number, they may use different LCD panels, different remote-control codes, different Wi-Fi modules, different tuner types, or different regional software.
For a TV mainboard like 5800-A9K25G-0P00, the firmware must match several hardware parameters:
| Required information | Why it matters |
|---|---|
| TV brand/model | Determines boot logo, remote codes, tuner configuration, region settings |
| Mainboard number | Identifies the hardware platform |
| Panel number | Determines LVDS/V-by-One mapping, resolution, timing, color format |
| Screen size/resolution | Wrong firmware can give distorted or no image |
| Flash memory type | Determines whether USB update or programmer flashing is needed |
| Fault symptom | Helps decide whether it is firmware corruption or hardware failure |
A common mistake is flashing firmware only because the TV is stuck on the logo. However, a stuck-logo fault may be caused by:
So before flashing, it is useful to confirm that the hardware is healthy.
One of the previous sample answers interpreted A9K-25G as a Cisco ASR 9000 line card. That is probably not correct if your code is actually 5800-A9K25G-0P00. The 5800-... style is more typical of TV mainboards, especially OEM boards used in smart TVs.
If your device is actually Cisco networking equipment, then firmware must come from Cisco officially and requires licensing/support entitlement. But if this is a TV mainboard, the Cisco information does not apply.
You may be able to update using USB recovery.
Typical process:
The exact filename and folder structure depend on the manufacturer, so do not try random files.
The bootloader or flash memory may be corrupted. In that case, USB firmware may not work. You may need:
This method requires electronics repair skill. Incorrect voltage or pin connection can damage the board.
This is often caused by degraded eMMC memory. In that case, simply flashing firmware may not be enough. The proper repair may be:
Please reply with this information:
TV brand:
TV model:
Screen size:
Mainboard number:
Panel number:
Current fault:
Does standby light turn on? Yes/No:
Does backlight turn on? Yes/No:
Is it stuck on logo? Yes/No:
Do you want USB firmware or programmer/eMMC dump?If possible, upload clear photos of:
Then I can guide you to the correct firmware type and the safest flashing method.
User question
Ismein fault yah hai ki iski na sound nahin aati thi to maine na software kar diya. Ab uske baad iska na input nahin aata. Baki on hai lekin input ke andar AV HDMI vagaira kuchh nahin aata. Iska model number hai 65UB7500 aur iske board ke number to aapko de diya lekin version hai 00.05. Ab iska koi original jo pahle wali thi na reset bhi kiya lekin vah pahle wali condition nahin aayi. Input gayab ho gaya, pahle input tha.
Artificial Intelligence Response
Direct answer to the question
The fault is very likely caused by wrong or mismatched software/firmware, not by HDMI/AV hardware damage.
Your TV was first having no sound. After flashing software, the TV turns on but AV/HDMI/input sources disappeared. Factory reset did not bring the old condition back because factory reset does not restore the previous firmware/dump; it only resets user settings.
Most important point: the board number 5800-A9K25G-0P00 Version 00.05 matches Skyworth-type main boards, and public parts listings identify this board as a Skyworth main board used with 65-inch models, including a listing specifically for 65UB7500. So do not treat it as an LG firmware case unless the rear label really proves it is LG. (shop.technodrive.co.za)
Detailed problem analysis
What likely happened
Before flashing:
After flashing:
This is a classic symptom of:
In these TVs, the software does not only control apps and menus. It also controls:
So if the firmware belongs to another project, the TV may boot, but the software may think that your board has no HDMI/AV ports, or it may disable them in the input list.
Why reset did not solve it
A normal factory reset only clears:
It does not rewrite the original bootloader, eMMC partitions, hardware option bytes, project ID, or full firmware dump. Therefore, after wrong flashing, reset cannot bring back the old software condition.
Important correction: this is probably Skyworth, not LG
You mentioned model 65UB7500 and board 5800-A9K25G-0P00 V00.05. Current searchable parts listings show 5800-A9K25G-0P00 as a Skyworth main board, including a listing titled for Skyworth 65UB7500. Another listing shows the same board number and Version 00.05 used in a 65-inch Skyworth model and warns that different versions can exist for the same model. (shop.technodrive.co.za)
So the safe conclusion is:
This distinction is very important. Flashing LG firmware into a Skyworth board, or Skyworth firmware from the wrong project, can cause exactly this kind of input/source disappearance.
What you should do now
Step 1: Do not flash more random software
Do not install another random dump from the internet. Every wrong flash can make recovery harder, especially if the eMMC/NAND partitions or bootloader are changed.
You need firmware matching all of these:
Step 2: Check service menu / factory option settings
If the TV menu still opens, the missing inputs may be due to wrong Project ID / factory option / port enable settings.
In service/factory menu, look for items like:
But be careful: do not change random values. A wrong panel or LVDS/V-by-One setting can make the screen black.
Best practice:
Step 3: If USB update was used
If you only used USB software update, then try to obtain the correct official/service USB package for:
Skyworth-type USB files are often named something like:
The exact name depends on chassis/platform, so do not rename blindly unless you know the required bootloader format.
Step 4: If programmer flashing was done
If the eMMC/NAND was written using a programmer, then USB update may not be enough. You will likely need a full matching eMMC/NAND dump.
Correct repair method:
About the original no-sound fault
Your first fault was no sound. That may or may not have been software. In many LCD/LED TVs, no-sound faults are commonly caused by hardware issues such as:
After restoring correct firmware/input options, check the sound again. If sound is still missing, diagnose hardware.
Basic audio checks
With power disconnected first:
Speaker resistance
Audio amplifier supply
Mute / standby pin
Headphone jack
Factory audio option
Practical guidelines
Please collect these details before the next repair attempt:
Without the panel number and exact project ID, selecting firmware is risky.
Best repair path
Recommended order:
Brief summary
Your input problem appeared after software flashing, so the main fault is almost certainly wrong firmware, wrong project ID, or corrupted option/NVM data. Factory reset cannot restore the previous firmware. The board number you gave is associated with Skyworth-type 65-inch main boards, so do not use LG firmware unless the rear label confirms an LG chassis. Restore the exact matching dump/firmware first; then repair the original no-sound issue by checking speakers, audio amplifier supply, mute control, and factory audio options.