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Archer C20 v4 Firmware Upgrade Not accepted by device. Error: 4503

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Archer C20 v4 Firmware Upgrade Not accepted by device. Error: 4503

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.

cold_river

2021-10-12 07:09:25

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Registered: 2021-10-12

Archer C20 v4 Firmware Upgrade Not accepted by device. Error: 4503

2021-10-12 07:09:25

Model: Archer C20

Hardware Version: V4

Firmware Version: 0.9.1 3.16 v0001.0 Build 161130 Rel.68411n

Downloaded the latest firmware version Archer_C20_V4_181213 from the following link: https://www.tp-link.com/in/support/download/archer-c20/v4/#Firmware

Tried to manually upgrade the firmware version on my TP-Link Archer C20 v4 router.

I used wired connection as suggested.

It fails with following text:

Error: 4503.

The uploaded file was not accepted by device.

Model: Archer C20

Current Firmware version:

0.9.1 3.16 v0001.0 Build 161130 Rel.68411n

Hardware version:

Archer C20 v4 00000004

2 Reply

terziyski

LV7

2021-10-12 13:19:55

Posts: 7137

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Registered: 2013-10-12

Re:Archer C20 v4 Firmware Upgrade Not accepted by device. Error: 4503

2021-10-12 13:19:55

@cold_river

Make sure that you're suing the correct FW release (device region and HW version should be confirmed).

Here's a guide on how to determine these details - usually from the bottom sticker of your device.

Here's a guide on how to upgrade the wireless router FW.

If this was helpful click on the arrow pointing upward to make it blue. If this solves your issue, click the star to make it blue and mark the post as a "Recommended Solution".

cold_river

LV1

2021-10-15 05:16:15

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Registered: 2021-10-12

Re:Archer C20 v4 Firmware Upgrade Not accepted by device. Error: 4503

2021-10-15 05:16:15

@terziyski I'm using the TP-Link India site and when I select HW version v4, the site shows me FW for Archer C20(EU).

I don't see a Archer C20 FW available on the site.

However, I have another router which is Archer C20 (EU) version but that says "you got wrong file" and won't take the FW either.

Archer C20 v4 Firmware Upgrade Not accepted by device. Error: 4503

Archer C20 v4 Firmware Upgrade Not accepted by device. Error: 4503

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