Wr902ac v3 8mb to 16mb storage

[imran1441]

Hi Everyone,
Sorry for my bad english i think you are all understanding my topic ,
Im not a developer, but i want to make my device 8mb flash to 16mb because inot have enough memory for installing more packages means ftp server samba server extra features in my router so i come here for solutions, I hope all make me helpful. I have Ch341a programmer and i backup dump file from orginal firmware and i change ic 25q128jvsiq ic than i flash openwrt firmware on tfttp server i will done' all is fine but storage till 8mb not 16mb show so will research 1weak in openwrt forum i not get any fine done' solution. So i hope to anyone guide me to done' my dream anyone's guide me how it will done' i will do what you all say give me any commands to program firmware i will do in Linux terminal how to cut bootloader and art file and how to build firmware i will do anything you say i have only ch341a programmer and 16mb ic soldring kit and laptop Ubuntu Linux terminal, so guide me to make it more storage my device tplink wr902ac v3 .

[frollic]

how about doing https://openwrt.org/docs/guide-user/additional-software/extroot_configuration ?

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Upgrade spi flash 8mb -> 16 mb

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[imran1441]

I will do this all but not work my device wr902ac v3

[frollic]

@imran1441

I will do this all

what all ?

@imran1441

but not work

what not work ?

[imran1441]

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Hey guys, I am upgrading my TP Link Archer C6 v2 (EU) flash from 8MB to 16MB. I have read other discussions on this and I have a few questions regarding what needs to be flashed on 16MB chip. These are the steps I am going to follow. Dump the 8MB flash to a file. Concatenate the file with itself to create a new 16MB(8+8) file, so that ART partition is at correct place. And then write it to the new 16MB flash. Solder the new flash and enjoy. Are these steps enough? I also want to move to US…

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I have this router laying around and decided to make a flash upgrade for better use with OpenWRT. The original flash is an EON EN25Q32(A/B) 4096 kB SPI, replaced to a Winbond W25Q128.V 16384 kB, SPI. A Raspberry Pi with a SOIC/SOP8 test clip, basic soldering skills and flashrom are needed (https://github.com/stefanct/flashrom.git). [001] The first step is to desolder the original flash chip from the board and fit it into the test clip. I find it's much easier to deal with it already desolder…

Upgrade spi flash 8mb -> 16 mb

I'm thinking of replacing the spi flash of my tplink archer c20 v5 which is currently 8 MB with a 16 MB one, so I'm trying to create a suitable firmware and to do so I'm using the image-builder tool but I can't find the definitions to be changed relating to flash layout (8MSUmtk), can anyone who has already done it give me a hand?

I will try this my device but not work

Can tel me how to cut 8mb firmware, Bootloader And ART partition in Terminal Command ?

[frollic]

what do you mean by cut ?

[imran1441]

i mean orginal 8mb firmware file how to take or Cut bootloader and art partition files in Linux terminal for orginal firmware , bootloader and art partition files

[frollic]

if you can still boot it, you can cat /dev/mtd?? > file
ART partition doesn't usually ship with the firmware.

[imran1441]

But my wifi show signal but not working in openwrt firmware so i want to orginal firmwarebacup bootloader and art file to create new firmware openwart but i dont no how it take backup in Linux terminal.

dd if=wr902acv3.bin of=bootloader.bin bs=1 skip=0 count=131072

dd if=wr902acv3.bin of=art.bin bs=1 skip=4128768 count=65536
Is this correct? For 8mb firmware

[frollic]

the syntax looks good, if the values are correct, I have no idea.

you could try to binwalk it, too.