ZEUS MINING
CRYPTO MINING PRO
Avalon Miner 841 Cardless Raspberry Pi Firmware
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( 891 Reviews )

Avalon Miner 841 Cardless Raspberry Pi Firmware


Unit Price: $ 19
MOQ: 1  Unit Weight: 0.001 KG  Availability: In Stock
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Subtotal: $ 19
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Tech support and pre-sale:


Product description

Avalon Miner 841 cardless raspberry Pi firmware writing tutorial

1: Log in to the miner, default IP: 192.168.0.100, and select Advanced Version;

(If the Raspberry Pi and the LAN are not in the same network segment, you need to modify the router IP network segment first)

choose Advanced Version button

Enter Backup/Flash Firmware under System;

choose firmware

Select the upgrade file and click to select the file;

Note: keep settings, keep the settings; if ticked, the original IP address, mine pool settings, etc., will be kept;

If it is A8 miner firmware, change to A7 miner firmware; please remove this tick;

Please remove this tick if it is an A8 miner and an A9 miner switching firmware.

2: Upload files;

upload Cardless Raspberry Pi Firmware

After clicking Flash image…, the following interface will appear;

Cardless Raspberry Pi Firmware for sale

Click Proceed;

Cardless Raspberry Pi Firmware upgrade successful

Then wait for the upgrade to complete, and return to the login interface after the upgrade is complete.

Notice:

For this tutorial, the Raspberry Pi is a non-card Raspberry Pi (non-card Raspberry Pi). Therefore, do not flash incorrectly Raspberry Pi firmware at will. Instead, contact the Raspberry Pi seller or Avalon customer service to ask for machine firmware, to reduce unnecessary damage to the Raspberry Pi because the damage to the Raspberry Pi caused by the wrong firmware is the buyer's responsibility.

1: Raspberry Pi defaults to 8-series or 9-series firmware. If you must change the firmware, first change the firmware and then set up the miner pool. For the specific Raspberry Pi, don't hesitate to get in touch with the seller to confirm the firmware model;

2: If you must change the firmware, you need to change the firmware of the corresponding model of Raspberry Pi without a card, and at the same time, there is a ✓ (hook) removed during the firmware update process;

3: Enter the IP, you need to wait for a while, the connection between the miner and the mining pool takes a certain amount of time to respond.

4: If the firmware page does not respond for a long time, do not power off the operation, it will damage the original data of the Raspberry Pi and cause a crash. If you need to confirm whether the flashing is successful, keep the original flashing web page interface, and open a new webpage to log in to IP: 192.168.0.100. If you enter normally, it means that the flashing has been successful, you can normally close the original flashing firmware webpage and perform subsequent miner pool settings.

Don’t disconnect immediately after setting up the miner’s mine pool; let it run for a while and wait for the mining pool’s hash rate to stabilize before proceeding with subsequent operations.

Notice
Recently, our customers reported that someone impersonated our customer service staff. Please enter the contact information page of our website. Contact information not listed on the website is unofficial. If you find someone impersonating us, please take a screenshot and send an email to [email protected], and terminate the transaction immediately to avoid loss.
O
om***82 2026-05-09

Good bro, he solve a firmware problem whit a s21+hyd A lots thanks

T
ti***cc 2026-05-08

J
ju***ia 2026-05-06

Impresive service ! 100 recommended!

T
tz***is 2026-04-27

Thank you Jay for the support!

V
Ve***xx 2026-04-24

Very good

N
ng***93 2026-04-24

I talked with Jay regarding an issue I had with my set up and he was quick to respond and eager to help me get through with my issue thank you Jay

A
Ac***ss 2026-04-22

Very fast and professional

F
fr***41 2026-04-16

Jay, a technical engineer at Zeus Mining, He resolved my request quickly.

V
vi***ts 2026-04-14

Mr. Jay, technical engineer, he has been a great help. Provided me all the necessary tools and software for troubleshooting and guided accordingly. Thank you for fast resolutions.

A
an***62 2026-04-11

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We treat our customers and partners as sincere friends and do our best to provide technical support and aftersales service.
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Q: When will we ship after payment?
A: In order to ensure that the products we ship are in good condition. Issued approximately 1-2 days after receiving your payment.

Q: What if the product is damaged during transportation?
A: We will use a more robust package when shipping to avoid damage to the goods, and we can purchase transportation insurance in advance to reduce the loss of in the transport. although this problem is not common.

Q: What payment methods do we support?
A: We support bank transfer, wire transfer, BTC, third-party guarantee and Paypal.

Q: What should I do if there is a problem after receiving the products?
A: We have established good relationships with maintenance departments in many countries/regions in the world. For example, Venezuela, Iran, etc. If you have any questions within 3 days after receiving the goods, you can apply for after-sales service on the "My Order" page.

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David 2026/5/9 11:13:47
Q:I'm looking for a fan simulator for Antminer S21Pro+. can you tell me which one will work? Also looking for "Crypto miner silencer box" for Antminer S21Pro+ with US Plug.
A:S21Pro+ Fan Simulator:

https://www.zeusbtc.com/ASIC-Miner-Repair/Parts-Tools-Details.asp?ID=3486

Crypto miner silencer box

https://www.zeusbtc.com/ASIC-Miner-Repair/Parts-Tools-Details.asp?ID=3036

Hello. For more details, please contact our Sales Manager via WhatsApp: +86 19115061757.
Hyt 2026/5/4 6:49:08
Q:Hello.
I have a z11
Can help me to reduce noise?
A:Hello, we offer a variety of products designed to help reduce mining rig noise. If you require assistance, please contact our Sales Manager:
WhatsApp: +86 19115061757
JASON 2026/5/3 19:36:41
Q:Hi I am trying to find a capacitor that has a symbol on it that some of yours have. So I was wondering if it is one of yours. I can't tell the size of it. It just has GGE on it and the symbol. It is on a amp board zk-3002. Any help would be greatly appreciated. Thank you Jason Griggs
A:Hello, please contact our technical support team; they can assist you in identifying the capacitor model.
WhatsApp: +86 19123969124
Juan de Beer 2026/4/25 19:04:31
Q:I am looking for price of a Z15 hashboard.
Does it come with cooling fins?
Thanks
A:Hello. Z15 hashboards are currently in short supply; please contact our sales manager to check stock availability.
WhatsApp: +86 19115061757
Lucky 2026/4/15 12:51:14
Q:S19pro cost
A:Hello. The price of mining rigs fluctuates in tandem with cryptocurrency prices; please get in touch with our sales manager for real-time pricing.
WhatsApp: +86 19115061757
Martin 2026/4/14 2:47:49
Q:Hi, please advise. Can I upload a different firmware to the S21 XP controlboard than the one directly from Bitmain? Thanks for the info M
A:Hello, please get in touch with our technical team; they will help you resolve the issue.
WhatsApp: +86 19123969124
Harsh 2026/4/11 22:37:21
Q:I want full repair kit for antminer
A:Hello! If you would like to place an order, please contact our Sales Manager. Thank you for your message.
WhatsApp: +86 19115061757
De marco 2026/4/6 17:58:25
Q:Comment obtenir le logiciel ezp2023 enzyme pro et ch341 svp merci
A:Bonjour, veuillez contacter notre équipe d'assistance technique ; elle se fera un plaisir de vous aider.
WhatsApp : +86 19123969124
Richard Gallemore 2026/4/4 3:54:13
Q:Hello! I've decided to begin the journey of building a farm with just one S9 to start. I have a deep APC half rack that can be used for 19in rack mounted gear or just to contain a group of miners with fans in the top to exhaust heat. Can you put together a rig for me and give me a quote? Thank you!
A:Hello, please contact our technical support team; they will be happy to assist you.
WhatsApp: +86 19123969124
Eugene 2026/3/20 0:27:29
Q:Hi, help me pls, which version of BM1368 chip is suitable for NerdQaxe+ 2.6Th?
A:Hello, please contact our technical support team; they will be happy to assist you.
WhatsApp: +86 19123969124
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