Firmware update Issues for Hesine Printer, Anet A8-B Hello. I am having some problems updating my 3D printer firmware. I bought this model off of Aliexpress and it was working well but I came across firmware on Thingiverse that claimed to work well so I tried updating with ArduinoIDE and it uploaded fine, but the LCD screen is not working. Aliexpress printer: [www.aliexpress.com] Thingiverse Firmware I tried: [www.thingiverse.com] I came across firmware that makes the LCD work properly but the configuration for the printer is not right. I think the steps are all messed up. The file I tried is from this forum: [forum.repetier.com] The firmware is located here: [www.dropbox.com] I will post a picture of my printer and it's motherboard. I've tried the "stock firmware" from the builder and the same problem happens with the LCD. I can connect to the printer with Repetier and use the printer just fine, but the LCD is locked up. Thanks in advance for your help. https://reprap.org/forum/read.php?406,641315,641315#msg-641315 Tue, 10 Mar 2026 11:33:50 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?406,641315,731670#msg-731670 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,731670#msg-731670 Where can find guide for newbies to repair avrdude: stk500_paged_write(): (a) protocol error, expect=0x14, resp=0x21?
I know i need flash the bootloader
how can I do it?]]> varemilio Prusa i3 and variants Mon, 19 Dec 2016 10:46:42 -0500 https://reprap.org/forum/read.php?406,641315,722061#msg-722061 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,722061#msg-722061
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Supermec
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drephuz
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joeylevyusa
I have the same one. I havent done a firmware update yet, but it seems that we have a Melzi Clone. Here is the wiki: http://reprap.org/wiki/Melzi There are links to usable firmwares there.

Here is an example of the board: http://www.ebay.com/itm/301815767959 (mine is red)

I am thinking of trying to upgrade to Marlin or Repetier, and I will report back with my results when I do. Right now, my bed temperature sensor goes nuts and the system thinks the bed goes from 84c to 93c, then again 105c to 394c ( and errors out).

I just posted something about this same damn issue! I also just emailed them about possible firmware

It's more likely that the temperature problem is an electronic one in the connections to the bed thermistor (including the soldered joints on the bed) rather than firmware. As I've said several times before in response to similar posts the Anet board is a proprietary board and you are unlikely to get any details from them or any firmware updates. Any firmware found floating around on the net is unlikely to suit the board. Once you have tried installing an unsuitable firmware then there is no way back to the original, and no printing until it's sorted.

My machine has operated faultlessly with the pre-installed firmware on an almost daily basis for the last two months. Firmware doesn't change itself and doesn't screw itself. Why is it that the minute something doesn't work users assume that it's a firmware fault rather than an electronic one.

Why is it

It's because I've never gotten the temperature up high enough to test this until now... which leads me to believe it has been an issue the entire time. I'm asking for help because the bed temp is not what is displayed, and multiple people (I've found 3 on this forum in the last week) having the exact same issue leads me to believe it's not a faulty cable, but an error in configuration.

I agree, if it ain't broke, don't fix it... I'm not going to flash my firmware on my ANET board at all, I'm just looking for some kind of confirmation. With the multiple examples of people claiming the jump from 83C to 95C, it doesn't sound like a perfect hardware malfunction on 3 similar boards, it sounds like improper software configuration. Be it in the firmware, or the repetier software. I don't think it's repetier...]]> drephuz Prusa i3 and variants Thu, 10 Nov 2016 12:07:20 -0500 https://reprap.org/forum/read.php?406,641315,719782#msg-719782 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,719782#msg-719782
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drephuz
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joeylevyusa
I have the same one. I havent done a firmware update yet, but it seems that we have a Melzi Clone. Here is the wiki: http://reprap.org/wiki/Melzi There are links to usable firmwares there.

Here is an example of the board: http://www.ebay.com/itm/301815767959 (mine is red)

I am thinking of trying to upgrade to Marlin or Repetier, and I will report back with my results when I do. Right now, my bed temperature sensor goes nuts and the system thinks the bed goes from 84c to 93c, then again 105c to 394c ( and errors out).

I just posted something about this same damn issue! I also just emailed them about possible firmware

It's more likely that the temperature problem is an electronic one in the connections to the bed thermistor (including the soldered joints on the bed) rather than firmware. As I've said several times before in response to similar posts the Anet board is a proprietary board and you are unlikely to get any details from them or any firmware updates. Any firmware found floating around on the net is unlikely to suit the board. Once you have tried installing an unsuitable firmware then there is no way back to the original, and no printing until it's sorted.

My machine has operated faultlessly with the pre-installed firmware on an almost daily basis for the last two months. Firmware doesn't change itself and doesn't screw itself. Why is it that the minute something doesn't work users assume that it's a firmware fault rather than an electronic one.

Why is it]]> Supermec Prusa i3 and variants Fri, 04 Nov 2016 18:23:05 -0400 https://reprap.org/forum/read.php?406,641315,719721#msg-719721 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,719721#msg-719721
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joeylevyusa
I have the same one. I havent done a firmware update yet, but it seems that we have a Melzi Clone. Here is the wiki: http://reprap.org/wiki/Melzi There are links to usable firmwares there.

Here is an example of the board: http://www.ebay.com/itm/301815767959 (mine is red)

I am thinking of trying to upgrade to Marlin or Repetier, and I will report back with my results when I do. Right now, my bed temperature sensor goes nuts and the system thinks the bed goes from 84c to 93c, then again 105c to 394c ( and errors out).

I just posted something about this same damn issue! I also just emailed them about possible firmware]]> drephuz Prusa i3 and variants Fri, 04 Nov 2016 12:36:05 -0400 https://reprap.org/forum/read.php?406,641315,704615#msg-704615 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,704615#msg-704615
purchased my Anet A8 recently for £118 ($145) delivery included and no tax. It arrived 24th of August (14 days after order). Now assembled and in use.

I've read down this forum topic of problems with upgrading firmware. You all seem intent (if you will forgive me) on causing yourselves problems. The golden rule for all devices - inkjets, lasers, 3d printers etc., is does it work with the supplied firmware without problems? If the answer to this question is "yes" then don't change the firmware. Given the wide variety of clones similar to most 3d printers, there is no guarantee that a revised firmware will work unless your machine is 100% compatible with the new version.

Firmware revisions are often dependent on design changes, unlike programme updates that generally offer more features.

Supermec]]> Supermec Prusa i3 and variants Thu, 01 Sep 2016 19:14:48 -0400 https://reprap.org/forum/read.php?406,641315,685408#msg-685408 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,685408#msg-685408 Anet V1.0 board is not an Arduino, it is just a board with Atmega1284p controller there, so it is ok that some things are not working as we usually expect from Arduino.
By the way, with Optiboot bootloader my board permitted me to reflash itself without coldstart magic.]]> roginvs Prusa i3 and variants Sat, 09 Jul 2016 14:55:26 -0400 https://reprap.org/forum/read.php?406,641315,685403#msg-685403 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,685403#msg-685403
- I have to power on the board with external source (rather than just using usb cable) to flash the firmware. Otherwise the serial port won't be present.
- If I try to flash the firmware a second time without rebooting the 3d printer, I'll get the error "avrdude: stk500_getsync() attempt 1 of 10: not in sync"]]> kenneth.jiang@gmail.com Prusa i3 and variants Sat, 09 Jul 2016 14:45:52 -0400 https://reprap.org/forum/read.php?406,641315,685281#msg-685281 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,685281#msg-685281
I tried running avrdude on command line with baudrate to be 57600 but got another error:
stk500_paged_write(): (a) protocol error, expect=0x14, resp=0x21 (a random number here)

Eventually I flashed the boot loader and everything works again.

Thanks again for your help!]]> kenneth.jiang@gmail.com Prusa i3 and variants Sat, 09 Jul 2016 00:02:07 -0400 https://reprap.org/forum/read.php?406,641315,684789#msg-684789 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,684789#msg-684789 I used factory bootloader for long time. I do not know, is it good way or not, but I usually do this way:
1. Poweroff printer
2. Run this command from Linux host [In my case it was Raspberry] (I suppose in windows same bat file will work too, but I had not tested it):
while true; do avrdude -b 57600 -p ATmega1284P -c stk500v1 -P /dev/ttyUSB0 -C /etc/avrdude.conf -v -U flash:w:Repetier.ino.sanguino.hex:i && break ; done
3. Turn printer power to on

But not so far ago I had to change bootloader to optiboot because factory bootloader is quite big (it is 4096 bytes long and starts from 1F000), and development branch of Repetier is overlapping with this address. I used Raspberry SPI [with arvdude build which supports Linux spi] in order to upload new bootloader and change hfuse from DA to DE.

PS: Try to connect with other baudrates, multiplied or divided by 2 from original.]]> roginvs Prusa i3 and variants Thu, 07 Jul 2016 08:09:35 -0400 https://reprap.org/forum/read.php?406,641315,684757#msg-684757 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,684757#msg-684757
Did you have to flash your bootloader?

When I tried to compile it with Atmega1284P (16MHz) I got error: avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=xxx

If I changed to Atmega1284P (8MHz) I was able to upload the firmware (yeah!) but now Repetier-Host can't talk to it any more.

Was that because I had to flash the bootloader?

Thanks,
Kenneth

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roginvs
Repetier for Zonestar P802M works perfect for my Anet A8-B (https://github.com/repetier/Repetier-Firmware/tree/master/boards/Zonestar%20P802M)
]]> kenneth.jiang@gmail.com Prusa i3 and variants Thu, 07 Jul 2016 06:37:16 -0400 https://reprap.org/forum/read.php?406,641315,673525#msg-673525 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,673525#msg-673525 roginvs Prusa i3 and variants Sat, 11 Jun 2016 16:53:37 -0400 https://reprap.org/forum/read.php?406,641315,672406#msg-672406 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,672406#msg-672406
However I'm deeply troubled but the problem of warped hot bed. It looks like the bed is flat when it's cold but warped when heated. I think it is because the aluminum bed expands at a different rate than the fiberglass beneath it.

Did you solve this problem (warped bed)? If so how?

Thanks,
Kenneth

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dchapma1
I have the same printer and PCB labeled ANET V1.0, small, square PCB.

I have printed several items and I am seeing the bed temperature reading getting flaky.
The hot bed is warped - high in the center - ABS parts tend to pop off during printing.


I want to calibrate this thing but the M501 command does not report back the steps / distance - the M92 readings.

I am leery about uploading any firmware as I really don't know what I have here.

Any ideas on how to calibrate this printer without knowing the current M92 values?

Thanks
]]> kenneth.jiang@gmail.com Prusa i3 and variants Wed, 08 Jun 2016 12:43:35 -0400 https://reprap.org/forum/read.php?406,641315,670981#msg-670981 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,670981#msg-670981
I have printed several items and I am seeing the bed temperature reading getting flaky.
The hot bed is warped - high in the center - ABS parts tend to pop off during printing.


I want to calibrate this thing but the M501 command does not report back the steps / distance - the M92 readings.

I am leery about uploading any firmware as I really don't know what I have here.

Any ideas on how to calibrate this printer without knowing the current M92 values?

Thanks]]> dchapma1 Prusa i3 and variants Sat, 04 Jun 2016 08:00:11 -0400 https://reprap.org/forum/read.php?406,641315,665509#msg-665509 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,665509#msg-665509 - The board might be compatible to melzi, but it definitely doesn't look like one. My board is labelled Anet V1.0; I didn't dare to update the firmware yet - and I didn't see the need to yet, either
- I had a thermistor connection issue, but it came down to a single badly crimped wire at the end of the thermistor thread (at the plug to the board) - that connection was shaky
- The printing bed was bent, and I added a fourth linear bearing to the carrier as the acrylic tended to flex
- I found the Repetier-host software a little more talkative about the printer state then the Cura that came with the printer
- As the printer was priced below 240 EUR after customs and taxes (about 260 USD) I would rate the results OK - I am printing toy parts for my children, mostly

Why are you trying to update the firmware? Any issues I didn't recognize so far?

Greetings
Rainer]]> rainerunsinn Prusa i3 and variants Thu, 19 May 2016 03:09:25 -0400 https://reprap.org/forum/read.php?406,641315,665464#msg-665464 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,665464#msg-665464 blueblasterleb Prusa i3 and variants Wed, 18 May 2016 22:54:41 -0400 https://reprap.org/forum/read.php?406,641315,664822#msg-664822 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,664822#msg-664822 Steve@SBVC Prusa i3 and variants Tue, 17 May 2016 10:43:56 -0400 https://reprap.org/forum/read.php?406,641315,659547#msg-659547 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,659547#msg-659547 http://reprap.org/wiki/Melzi There are links to usable firmwares there.

Here is an example of the board: http://www.ebay.com/itm/301815767959 (mine is red)

I am thinking of trying to upgrade to Marlin or Repetier, and I will report back with my results when I do. Right now, my bed temperature sensor goes nuts and the system thinks the bed goes from 84c to 93c, then again 105c to 394c ( and errors out).]]> joeylevyusa Prusa i3 and variants Mon, 02 May 2016 18:37:32 -0400 https://reprap.org/forum/read.php?406,641315,641558#msg-641558 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,641558#msg-641558 Flyingferret Prusa i3 and variants Fri, 18 Mar 2016 19:54:07 -0400 https://reprap.org/forum/read.php?406,641315,641449#msg-641449 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,641449#msg-641449 broy55 Prusa i3 and variants Fri, 18 Mar 2016 15:10:52 -0400 https://reprap.org/forum/read.php?406,641315,641416#msg-641416 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,641416#msg-641416 [www.dropbox.com]
ID:hesine3d.cora@yahoo.com.hk
Passwrod: 89378800

This is everything for the printer apparently. I found the firmware in there and downloaded it then uploaded it to my printer but the LCD doesn't work. I've peered into the config file and it looks like the LCD isn't setup properly so I've asked them again for an update on it but haven't heard back yet.]]> Sethrocon Prusa i3 and variants Fri, 18 Mar 2016 14:04:18 -0400 https://reprap.org/forum/read.php?406,641315,641388#msg-641388 Re: Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,641388#msg-641388
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Sethrocon

I've tried the "stock firmware" from the builder and the same problem happens with the LCD. I can connect to the printer with Repetier and use the printer just fine, but the LCD is locked up.

I have a printer with the same board. It's an Anet V1.0 from anet3d.com.

Where did you get the "stock firmware" from, if you don't mind me asking?

I have an email into anet3d.com asking about the firmware.

I'm completley new in 3D printers but since it's AT1284P based I'm assuming it's a Melzi clone of some sort so Marlin should apply. But before burning new firmware I'd like to be somewhat certian of what I'm working with.

Anyone have any further info on this borad and its firmare?]]> rwreynolds Prusa i3 and variants Fri, 18 Mar 2016 13:17:05 -0400 https://reprap.org/forum/read.php?406,641315,641315#msg-641315 Firmware update Issues for Hesine Printer, Anet A8-B https://reprap.org/forum/read.php?406,641315,641315#msg-641315
Aliexpress printer: [www.aliexpress.com]
Thingiverse Firmware I tried: [www.thingiverse.com]
I came across firmware that makes the LCD work properly but the configuration for the printer is not right. I think the steps are all messed up. The file I tried is from this forum: [forum.repetier.com]
The firmware is located here: [www.dropbox.com]

I will post a picture of my printer and it's motherboard.

I've tried the "stock firmware" from the builder and the same problem happens with the LCD. I can connect to the printer with Repetier and use the printer just fine, but the LCD is locked up.

Thanks in advance for your help.]]> Sethrocon Prusa i3 and variants Fri, 18 Mar 2016 10:23:09 -0400