Even though the official sites and notices in stations are all trying to convince you that there is no way you can buy a PASMO and Suica right now, scaring all visitors without iPhones away, there are still ways you can buy one now.
Suica/PASMO for Tourists: Welcome Suica / PASMO PASSPORT
This is the officially recommended way, even though they are sold in just a few locations. Also, they expire after 28 days and you cannot refund the unused charged money inside, so I personally do not recommend this. For those working and studying, this is basically useless. You can check out their official sites for where you can still buy them: PASMO PASSPORT, Welcome Suica
Regular Suica: JR East Travel Service Center
As JR did not announce this at all and just secretly updated their visitor-facing website, it got very little media attention. I went to ask the staff a while ago, and I was told that even though they are intended only for tourists, they will not check for documents like passports. This is probably your best bet if you happen to be in one of the stations. Check this link out: JR East Travel Service Center.
Regular Suica: buy a 1-day pass
Even though the official website mentioned that only children and monthly pass Suica are still sold, but 1-day passes with new Suica are actually also sold. So if your trip has a day where using a one-day JR pass is beneficial (if you live in the west side, a round-trip to Kasai Rinkai Park is already worth the cost), go to a black ticket machine (that sells monthly pass), and choose the option that issues a new Suica. Check the following video but choose the new Suica option instead!
Probably the only way to buy a regular PASMO: One-day pass
Some might want a PASMO instead of a Suica (I like the looks of PASMO more, and some passes like Keio+Tokyo Metro one-day pass are only sold to PASMO holders). The idea is the same as JR day-pass, but since PASMO are used by many operators, the interface will be different, and some operators don't seem to sell PASMO through this method.
Operators that sells PASMO by buying a day-pass:
- Tokyo Metro (I bought one through this method)
- Tokyu (Goes to payment screen but I did not try actually paying)
- Yokohama Municipal Subway (Goes to payment screen but I did not try actually paying)
Operators that does not allow this:
The actual steps should be similar to JR: go to a machine that sells one-day pass, choose the value ticket option, choose the pass you want to buy, and choose the new PASMO option. The procedure for Tokyo Metro is shown:
You can no longer buy a toica in Tokyo station
According to the Official Website and Japanese forums, JR Central stations in Tokyo metropolitan area (e.g. Tokyo, Yokohama) no longer sells non-monthly pass toica.