This site already has reviews of nexx router wt3020. And though it is the modernization of this device will be the ultimate goal, but pushed to write the review I was just buying a chip, the review of which here I have not found. Who cares what happened in the end — I ask under kat.
I’ll start with
A little later I came across the opportunity to “upgrade” the router that was to add on Board usb port. But he decided that to deal with such alteration is not necessary, and it is better to find something more modern with usb, processor more powerful, the possibility of installing openwrt and a large memory for firmware (otherwise, by itself, the usb port becomes either unnecessary attribute because there is no space for the installation for devices connected to or binding yet and hub + some USB flash drive in it to expand the volume of the file system to install this SOFTWARE).
So I came across nexx wt3020. Then I began to look for his reviews on this site (have read, but it was not registered and certainly not going to write reviews, believing that all things bought by me, there is already someone necessarily surveyed).
Notes on this router here, of course, was. Here, for example, a review of lolipop-but with a bias towards changing the firmware and “transformation” of the router from the little known “nexx” “asus” or “zyxel”, and also a huge discussion of this device (mostly related to the firmware, use with router additional hardware like modems, other “technical issues”). Those who do not know that can this router and whether to buy it, you may want to read this review first. After spending a couple days reading reviews (and there really is a lot), I came to the conclusion that the device is very good: has good functionality, reliable hardware (also used in the more famous and popular producers), small size, good opportunities for flashing.
So, in the vast aliexpress purchased nexx wt3020. While the router was travelling to me by the mail of Estonia (the package came surprisingly fast), I studied how and who uses such devices with openwrt and found a lot of interesting (not to write the essential, important, desired etc.), its applications ranging from video surveillance left the apartment pet, continuing using the router for surfing the Internet via tor without installing any additional software on devices within your home network) or the performance of a file server with a self-background downloading of torrents (no computer included) and ending with the collection of information about neighboring wi-fi networks for subsequent attempts of hacking. Various usage scenarios of the router require the installation of additional software in the router, which in turn requires either a sufficient amount of internal flash memory, or connect any external media (usb stick, external hard drive, etc.). By default, the router includes a chip volume of 8Mb, which is enough for the basic tasks of router, but sorely lacking for all sorts of experiments.
And that’s when I realized that in stock configuration, I’m not particularly unfold (to connect external USB flash drive to install programs I didn’t want to, because I want to get a self-contained box, in which I will have the ability to connect cameras, printers, 3g/4g modems, etc.), I found out: the replacement of the memory chip in the device. Yes, the information on replacing the chip can be found in comments lolipop, but then I passed it over because I did not think about, but eight megabytes was more than enough.
Start looking at the same aliexpress chips w25q128 who have successfully installed this router in other Moskovchenko, I wondered: is there
the same, only with pearl buttons chip to 32 MB? 64 MB? And whether to work with them router? Answers to these questions, I found no comments, no asking questions of other participants on this resource. Searching the net, I also found no description of a successful experience of similar modernization. Then I decided to experiment.
-cheap programmer (the choice fell on ch341a, here’s one of his reviews here)
-w25q128 (as the chip which 100% will be supported by the programmer, and will work in the router).
This is just from one seller was due to the fact that I didn’t want to pay for the shipping 32Mb chip amount far exceeding the cost of the chip: at the time of purchase they are not very much sold on Ali and was everywhere
any insane price with free shipping (I’m not saying that 8-10$ is very large sum, but for the memory chip of this size, taking into account the cost of the entire router$ 15 is too much);
any small price, but the shipping cost was through the roof.
I wanted to get all this hardware in one package.
In the end, few sellers were found. I’ve asked the same question: If you purchase a programmer, will you put in the same package and the memory chips without having to pay for their shipment?
Said only one Chinese (link to his shop is in the title of the review). Was a very sociable man with a sense of humor (though it is all the more ironic). Please explain to me the basics of doing business, saying, buy a party in a hundred chips and the cost of shipping, and the chip will be different. Then asked me to find the data chips (including shipping costs) are cheaper, etc. When ordering three separate positions of programmer, chip and 32 MB chip 16 MB of the total delivery cost came out at about 18.5$. However, I strongly explained to him about the same thing: I buy from you programmer more expensive than other Chinese), put it in the same package and the chips do not need to send separate envelopes for 3-5 dollars each. In the end, the total cost of the parcel from the programmer, a single chip is 32 MB and the 3 chips on the 16 MB decreased from 18.5$ 7.92$. At the moment, for some reason the chips are not available, but searching by Ali you can find other suggestions.
Photo external view of the chip that is in the title of the report was taken from the shop where it was bought because it is not removed or unpacking the product, nor the iron — as already mentioned earlier: the review was not going to write. Here’s a photo of her already soldered to the pad, the programmer:
And here: photo contact pads (again with page)
After the purchase began a series of not very pleasant surprises:
1) Does not want to run openwrt (from a word absolutely)
2) the programmer refused to work correctly with the chip 32MB (though his support was declared)
3) Alternative ON — flashrom under linux does not know of this chip and may not work with him. The problem is that chips up to 16 MB uses 3-byte addressing mode, but for large amounts of three bytes is not enough. We need to get out some other ways.
Solving problematic issues, managed to build a test firmware openwrt, written in the chip w25q256 loader, and solder the chip to the router (for me it was relatively easy procedure, because the legs on the chip there — only pads and at home I have hot air gun is not available):
The photo quality is not very good — took pictures with a phone at night by the light of two led light bulb lamp 10 watts each.
When enabled, the bootloader starts:
and properly recognize the chip.
Then it was easy to fill with it firmware, which is available in all memory devices:
Thus, it is possible to state the fact that the nexx wt3020 quite able to work with a flash drive capacity of 32 MB (at least with the model that participated in the survey).
Anyone who wants to repeat this experiment, I want to wish you good luck, but to remind you that if you are going to upgrade your router, do so only in the case of a full understanding of their actions and their possible consequences
Thank you for the review time.