When we delete a preset there's no way to recover it - we must remake the preset. Here are the common presets that are used on a 10-band EQ in Rocket Player. Use the screenshots below to remake the preset.
Acoustic

Bass Booster

Classical

Dance

Deep

Electronic

Folk

Heavy Metal

Hip Hop

Jazz

Latin

Loudness

Lounge

Normal

Piano

Pop

R&B

Rock

Small Speaker

Spoken Words

Treble Booster

Treble Reducer

Vocal Booster