If you have free electricity or free power source mining for you is profitable and it depends on what mining machine you have because if you mine coins with GPU the ROI will take years before you reach the ROI. But if you are mining with ASIC miner I think you can reach the ROI fast.
You don't need a deep knowledge of Hardware/software. It is enough if you know how to maintain your miners or how to clean them and knowledge to set up the pool is enough.
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Have you tried to upgrade the firmware to the latest version? The latest version is "Antminer-S9i-xilinx-201907311618-autofreq-user-Update2UBI-NF-sig.tar.gz" Try flash it first to the latest version then check the miner's configuration and look for working mode and try to check which settings will fix your issue until you choose "lower power mode". If not working do a hard reset and repeat. You can find the guide from here https://support.bitmain.com/hc/en-us/articles/115003595387-How-to-reset-miner-to-factory-settings-Do the 1st and 3rd method and ignore the 2nd method. If nothing works there is a problem on PSU or Hashboard.
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No, you can't downgrade them 2019 firmware has signature restriction you can't downgrade them just like in s9. Bitmain is not releasing image/firmware yet for flashing these miners through SD card. I don't if you can enable SSH of these miners but there are some guides here on the forum. Check this below. - Antminer Hack S9 /S15 / S17 / Sx aso. SSH and so on for free - Restoring SSH MethodI don't know the 2nd one if it will work on both s15 and s17.
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Electrum has the tab receive, when I open the tab it creates an "address to receive" and gives the option to add description, quantity and the expiring time with the option to save it. However I just copied the address without adding description, quantity, expiring time and sent bitcoin to it.
It seems that you are in the receiving tab where you can request and save. It is not the place where you can make a transaction as Tryninja said you don't need to do anything just copy the address is enough. You can also go to the addresses tab and you will see all address you own including change addresses. If you are going to send bitcoin send tab is the place where you can send bitcoin?
Little update You are here if you want to copy the address just copy the address you don't need to put anything here. So if you sent a bitcoin to that address the bitcoin transaction will show in the history tab. ![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2F3R7IDAk.png&t=665&c=CUmqmxThEpNeoQ) If you want to make a transaction you should be here: ![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2FqK0jigQ.png&t=665&c=HJtC_XIXGG-sxQ)
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It is august firmware
Did they remove the Enhanced Low Power Mode in the august latest version? Why?
No they just move this on “Miner Configuration” for august firmware You can read this updated article from Bitmain from here Instructions of new multi-option firmwareAnd why is the frequency for each board showing 1824? but the total is showing correct at 633? Is the controller going bad?
It might be a bug why not try to report it to the Bitmain support about this so that they can make a patch for this new firmware. There is no way to go back to older firmware?
I think you can downgrade it through SD card flashing but I think you don't need to worry about the "low power mode" because they added it on the drop-down menu in multi-option(Miner configuration). Should I try a custom firmware like Braiins?
No need, everything you need is already in august firmware except for SSH.
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No, you can't configure the dev fee and I think they don't have a dev fee unless if you have programming skill to modify the firmware. If you are planning to modify it check this open-source from here https://github.com/braiins/braiins-os
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Examples include Binance, Kucoin, and GBX Exchange.
I agree for 2 exchanges mention above but no for GBX exchange honestly never heard of it and look at the volume from coingeko it's too low with no 24hrs volume. For me, it is not safe to use even on the app. Anyway, Binance is the best option for me to trade Bitcoin "buy and sell" the Binance app is very responsive and never had any issue yet but I am not using it for daily basis I just using it when converting my bitcoin to USDT. You can find the apps from this URL https://www.binance.com/clientDownloads.htmlFor KuCoin they are also great I use it to exchange some coins but I mostly trade in Binance. The right URL to download the KuCoin app you can find from here https://www.kucoin.com/download
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I am using the latest version of Electrum
Where exactly did you download the latest version of Electrum? I tried to check your xpub from here https://blockpath.com/wallets/local/101?action=appxpub but the result "No Used Addresses Found ![Sad](https://bitcointalk.org/Smileys/default/sad.gif) " it means no addresses are used yet(receive or sent) from your wallet. If you download the Electrum wallet from another source, not from the original website you might be phish with fake Electrum wallet.
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Did you tried to dump the private key of the address(The unspent address) using console and this command dumpprivkeyCan you try this command line in the console below. validateaddress "address" To check if you own this address it should show something like this below. { "isvalid" : true, "address" : "1umybitcoinaddress54321", "ismine" : false, "account" : "" }
If the 'ismine' shows "false" it is not your wallet address but if the result is "true" you own that address.
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What wallet you are talking about that asking for fingerprint verification? Never heard any bitcoin wallet that asking for fingerprint. For me, it's not safe because giving fingerprint is just like giving your identity. So I suggest you go for 4 digit pin than a fingerprint.
If you want a secured wallet only hard wallet and cold wallet are the best and secured. Like ledger nano as hardware wallet or offline Electrum wallet for the desktop wallet.
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Ive been tryng to downgrade the firmwear my T9+ for about a week and Im having no luck. The board will not take a sd card flash no matter what I try, I am not technical enough to truly dig in to the firmware (though I did try for about 1.5 days...) so I bought a ftdi but Im not having any luck with it either. I have cooltherm and the ft232 drivers installed and the pin outs connected correctly to the t9+ board and ftdi but I am not prompted to log in when I open cooltherm or plug the ftdi into the computer or press the connect button inside cooltherm. I have the baud rate at 115000, the miner board is powered up, what am I missing? How do I make the ftdi and miner board talk? Im assuming once they are communicating I can modify the bin file (or whatever its called specifically) via cooltherm and then upgrade/downgrade out of the ssh version of the firmwear thats on my board at the moment? Sorry for all the questions, ill get this newb knocked off me soon I promise!
How about the jumper? Did you know that you need to move the jp4 jumper before you flash the miner. Check this guide on how to flash the antminer t9+ with SD card from here " T9+ Control Board Program Recovery" About FTDI I think this tool is only for old ASIC miner. Check this thread from here https://bitcointalk.org/index.php?topic=831601.0
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It seems that you accidentally click the popup window with a suggestion to download the latest version then redirect you to the fake electrum website.
If your balance is gone after upgrade your bitcoin is totally gone and there is no way to recover them back.
Since you use electrum 3.0 before you receive your bitcoins, most of the servers of old electrum version are forcing you to click fake electrum website if you click the link there and download the fake electrum there's no way to reverse it.
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Don't know, unfortunately. I'm studying php to solve this and other site problems. ![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif) Anyway it's a funny news. CoinPayments scammed me with the initial 3 customers ahhahaha Blocked my account for: possible fraud site. While my site sell software written in vb.net produced by.......... ME! ![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif) I had to refund my friends with paypal... yes they bought to test the new system. (Care that paypal is not better ![Grin](https://bitcointalk.org/Smileys/default/grin.gif) ) Anyway, I go with classic way. They pay me with BTC and I with a local wallet will enjoy my funds. What software or CMS you are using to develop PHP or are you just creating a website with Dreamweaver? I suggest you to try WordPress as your CMS and BTCpay as your plugin you can use their 3rd party hosted payment processor. You can find all guides to implement BTCpay in your website from here https://docs.btcpayserver.org/CoinPayments nowadays is not advisable to use due to many countries are restricted. If you are looking for another payment processor to accept BTC you can check this List of Awesome Bitcoin Payment Processors
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However, if you are solo-mining simply include the transaction into your block when calculating it.
And you need to find software which let you manually choose transaction, since i don't remember any up-to-date mining software for solo mining (unless you open-source pool server) You can't do that too easily you need to win a block before you can include the transaction on the block if you have a big farm with high hashrate maybe you can but if you only have few miners with solo-mining, no you can't. Some pool operators can do that. I heard that in F2pool you can choose transaction to include on the block but only on their selected participants. Look at this post from here https://bitcointalk.org/index.php?topic=1726194.msg17274182#msg17274182
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If you are looking for secured wallet these wallets below are recommended. Hardware wallets(Best wallet by rankings) #1 Ledger nano = Official website from here https://www.ledger.com/#2 Trezor = Official website from here https://trezor.io/#3 keepkey = Website where you can buy this wallet here https://shapeshift.io/keepkey/#4 Bitbox = You can buy this wallet from here https://shiftcrypto.ch/Desktop wallet: - Wasabi wallet- Electrum walletTake note about Electrum make sure to download the wallet directly from electrum.org domain. Mobile wallet - Mycelium - Electrum - Coinomi - Bread wallet For most secured wallet go for hard wallet you don't need to download the whole blockchain.
It is a local wallet? So it can't be controlled by companies or possibilities to froze funds until KYC approvation?
Electrum has no KYC and it is not controlled by companies no one can froze or freeze your wallet except you who know about the seed phrase and private keys.
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It looks like the two option is no longer supported but I tried to unlock mine it shows 4 option to open the wallet. Look at this image below. ![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2F4dZeYWM.png&t=665&c=8Zo8LNoLbtTvug) Did you see these another two option the keystore and Mnemonic phrase? If not report this directly to binance.org and request to recover your account through phrase.
Here's the post from binance assistant " Binance Web Wallet Drops Support Unlock by Mnemonic Phrase"Additional contact info from OmegaStarScream post above you can also contact them through a telegram from here https://t.me/BinanceDEXchange
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