Ako uzmeš pravu opremu nije baš da ide u zrak već uvijek možeš prodati opremu i vratiti veći dio uloga. Jedino treba da paziš kada uzimaš opremu da to bude nešto što je zanimljivo ljudima kasnije za kupiti. Znači jače grafičke kartice sa dužom garancijom (nikako one mining kartice bez video izlaza), kvalitetnije ploče, napajanja, itd.
Svako ulaganje je rizik. I neko ko otvara pekaru ili frizerski salon i slično nema sigurnost da će mu se ulaganje isplatiti ili će morati zatvoriti radnju za 6 mjeseci uz gubitak. Istina je da uz isti ulog postoji mogućnost da se više zaradi trgovinom coinima nego minanjem, ali ako napraviš nekoliko pogrešnih odlika ostaješ bez svog uloga, a nemaš ni opremu da prodaš i povratiš dio nazad.
Ukratko, sve je rizik i treba dobro proučiti sve razloge za i protiv i tek kada dobro odvažeš sve onda odlučiti da li se upustiti u nešto ili ne.

To pitanje se može postaviti i za GPU.
Koliko gledam trenutno je prema Nichehas kalkulatoru puno profitabilniji od grafičkih kartica.
Ali .... ima garanciju 180 dana i to samo prvi direktni kupac od Bitmaina, a smuči mi se kad čitam komentare ljudi koji su imali neki problem s uređajem. Svi se žale na podršku od strane Bitmaina, plus neka ti još uređaj zapne na carini ...

- ne mozes kupiti s9 bez 2200evra
-tvojih 5000$ je 4300evra
-ne mozes kupiti ni 2 s9 za te pare
-. s9 u ovom trenutku daje 340evra mjesecno
-sad imas sve neophodne podatke pa mozes napraviti proracun

It won't be possible to get 3 confirms faster, but come on mate, it just takes ~10 minutes to generate a block at current difficulty too, and sometimes miners find 2 - 3 blocks in a matter of minutes, so waiting is the only option you have in the end...

You can't get a confirmation without a block.
The first confirmation is the block your transaction is included.
The chances of your transaction being included in a block are tied to some factors, the most important one is the fee you pay.
After that, every block on top of the block your transaction was included will act as one more confirmation for said transaction.

The fee will have an influence on whether or not your transaction is included in the first block, but it won't make the second and third blocks be discovered any faster,
those factors are out of your power.

You can pay a higher fee, which makes your transaction more likely to be included in the next upcoming block.
After that, there's nothing you can do about the confirmations, as it's going to get one with each new block, and the time between blocks (while being on average 10 minutes) varies.

blockchain still provide a way to reset your two factor authentication by pressing a button on the left side of login form with alt "reset two factor authentication" you just need to give em a proof that you're owning the phone so you can simply call your career about this problem and they will probably give you some details or important document that may let you have the proof for resetting 2fa

just an advice it would be better if you'd enable 2fa through google auth and backup your qrcode as a image and then print it and save it somewhere so you'll not worried to lose it again, and google auth just need internet connection

Okay, so if 2FA is impossible to be removed, here is a plan.

Step 1) Write EVERYTHING down. Take picture of everything (internet history of you accessing the site - if need be). Find any email or record of you making any transaction.

Step 2) Consult low cost legal advice in your town. Be willing to file a sworn affidavit that YOU purchased 5 BTC and have them stored in blockchain's server(s).

Step 3) FOLLOW THE LAWYER'S DIRECTIONS. Sue blockchain's LLC if need be, as it is YOUR money, and its office in the USA will be a place that can be served.

Good luck!

Well, saving it on your phone can't be considere a backup.

But what contract do they want? Blockchain wallets are free.

just for the record i want to add that windows 10 is a privacy hazard. Microsoft has officially added their own keylogger to their windows. this doesn't mean viruses or any danger to your bitcoin, just that you should say goodbye to your privacy if you use windows 10.

Didn't you save the mnemonic they provided you with? If not, that was a really dumb thing to do.

That's why you use Authy or G-auth, they work without an internet connection.

while this is true for someone who knows what he is downloading and doing online (you), it is untrue for technically-unsavvy people which OP probably is. so my advice is always: buy a hardware wallet. there are cheap ones too.


@Towelielie
good choice. have fun with it. 

Good choice to go with the hardware wallet there.  ... Just as a note to other people... Even if the hardware wallet seems to be the safest option out there at the moment... someone could still steal

the device and acquire the boxed information {Seed etc...} Keep the device in a safe place and separate from the notes you made on the recovery seed . We get people breaking into houses every day,

and a person with technical skills will be able to extract vital information from this device, using these notes.  .... Your fears with USB devices have merit... because of firmware hacks like BadUSB. 

just like how you remove 2fa from google account, i think blockchain have same procedure.
as long as you can provide convincing information about your blockchain wallet account and they think it is match, they will reset it ithink........but not sure.
just a suggestion, next time never put over 1 btc in online wallet, use a desktop client wallet.

Any updates? I dont understand why r u unable to activate that number for 6 months??? What s the lag?