Save a tag as a preset
A preset is a named set of records kept on your iPhone. Save one from the tag you are editing, then write those same records to as many tags as you like without building them again.
Before you start, put a set of records on the Tag screen, so there is something to save. On the Hex NFC home screen, tap Scan, then hold the tag you want to copy. To start with no tag in front of you, tap Build. Either one opens the Tag screen. See Scan a tag and Edit a tag's records.
Save the records you are editing
Etapa 1Open the save sheet
On the Tag screen, tap the menu button at the top right, then tap Save as preset…. The menu row is dimmed until the tag holds at least one record or a protection setting.
Etapa 2Name the preset
In Name, enter a name you will recognise later, such as the place the tags are going. Save stays dimmed until the name is filled in.
Etapa 3Add a note
Optional: in Notes, write what the preset is for. The field takes up to four lines.
Etapa 4Choose an icon
Under Icon, tap one of the three segments, which are named in words rather than drawn as shapes: Outer frame, Caret up or Caret down. The one you tap sets the hexagon badge shown beside the preset in the Library.
Etapa 5Check what the preset will hold
Records counts the records that will be stored. A preset that carries protection and nothing else reads "No records. This preset only applies protection." instead.
Etapa 6Save it
Tap Save. The sheet closes and the preset appears at the top of the Presets tab in the Library.
A preset carries protection only when you set a password or a key on the tag before you save it. You do that on the Tag screen, which shows Protection for tags that can be protected. Tap Protection and turn on Password-protect this tag. Enter the secret in the field the sheet shows, such as Password (4 bytes), then tap Done. See Protect a tag with a password.
Once that is done, the save sheet adds a Protection section naming what the preset holds, such as "Password protection (write-only)". The secret does not go into the preset itself. The app says so in the same section: "The secret is stored only on this device (Keychain). It never syncs or travels in an export." A preset arms a tag only while that secret sits on this iPhone. One you saved without entering a secret arms nothing.
If your iPhone refuses the save, a red line appears at the bottom of the form. It reads "Could not save: " and then the reason your iPhone gave. The sheet stays open and your records stay on the Tag screen, so nothing you entered is lost. Tap Save again. If the same reason comes back, tap Cancel. The records are still on the Tag screen. You can write them straight to a tag instead of keeping them as a preset.
Write a preset to a tag
A padlock beside a preset's name means it carries protection settings. The row stops there. It does not tell you whether the write will arm the tag, because that turns on the secret held beside the preset. The secret is not shown. A preset you saved on this iPhone after entering a password or a key of your own holds that secret and arms the tag. A preset saved from a tag that was already protected, where you never entered its password, holds none. It writes its records and protects nothing. If you cannot tell which one is in front of you, treat it as the arming kind.
Etapa 1Open the Library
On the home screen, tap Library. The Library screen opens on Presets, with the preset you changed most recently at the top.
Etapa 2Start the write
Swipe the preset a short way from its left edge, then tap Write. The Library closes and the write screen opens.
Etapa 3Hold the tag against your iPhone
Hold the tag against the top of your iPhone while the screen reads "Hold tag against the top of your iPhone". It reads "Locked in" once the records are on the tag.
Manage your presets
Until you save one, the Presets tab reads "No saved presets". After that, every row carries the preset's name and icon. A line under it counts the records and gives the date the preset last changed.
A padlock beside the name marks a preset that carries protection settings, and VoiceOver reads it as "Applies protection". What that padlock does and does not promise is above, under Write a preset to a tag.
Swiping a preset from its left edge reveals Write and Share. Swiping it from its right edge reveals Delete and Duplicate. Swipe a short way, then tap the button you want. A swipe carried all the way across from the right edge deletes the preset on its own.
A saved preset cannot be changed. To alter what a preset with no padlock holds, build the records again on the Tag screen. Save them as a new preset, then delete the old one.
Leave a padlocked preset alone. Rebuilding it from the Tag screen gives you records and no secret, unless you set the password or key up again first. Deleting the old preset takes the only copy of the secret that opens the tags it protected. To get a second copy of one, use Duplicate, which carries the stored secret across.
From the Presets tab, do any of the following:
To keep a copy of a preset outside the app, swipe it from its left edge and tap Share. The app writes a
.hexnfcfile named after the preset and hands it to the share sheet. The records and the protection settings travel in that file; the password or key never does. Hex NFC has no way to open a.hexnfcfile. What you send someone is a copy of the records to keep, not a preset they can add to their own app.To make a second copy of a preset, swipe it from its right edge and tap Duplicate. The copy holds the same records, the same protection settings and the same stored secret.
To remove a preset, swipe it from its right edge and tap Delete. Nothing asks you to confirm, and the preset's stored secret goes with it.