You can update the theme follow as Shopify guidelines. This link has detailed steps for you to upgrade the theme easily.
This is the link: Updating themes
Mivo
⌘K
- Getting started
- Sections
- Announcement bar
- Header
- Footer
- Featured collection
- Image with text
- Image banner
- Collapsible content
- Featured blog
- Collection cards
- Collection grid
- Collection hover image
- Comparison table
- Feature list
- Featured collection hero
- Featured collection tabs
- Featured product cards
- Featured products
- Gallery
- Image with text slider
- Marquee text
- Marquee text with image
- Promotional bar
- Sale countdown
- Search bar
- Shop the look
- Specification table
- Specification tabs
- Specifications banner
- Testimonials
- Testimonials with images
- Testimonials with shape
- Video features banner
- Background video
- Rich text
- General settings
- Can I add countdown timer to my products?
- How can I create my own custom product pages with sections?
- How can I create my own custom pages with sections?
- How do I set up a product size chart?
- What is lazy loading?
- Image and video size recommendations
- How do I set up swatches?
- Working with templates
- Fonts, colors
- Setting up navigation
- Settings overview
- What version do I have?
- How do I remove “powered by Shopify” from the footer?
- Why won’t my videos autoplay?
- How do I add product videos?
- How to enable sticky add to cart
- Using the currency converter
- Installing Shopify’s Product Reviews app
- How to change the product short description
- How to enable social icons in the footer
- How do I set up buttons?
- How can I set the shape for the pagination button?
- How can I set the image style for my product cards?
- Advanced settings
- How can I customize my checkout and cart?
- How can I enable product filtering?
- How can I improve my Online Store speed score?
- How do I remove the shopping cart?
- How do I show images only for a specific color?
- How do I update my theme?
- How to set content in a tab differently in each product?
- How to set up Mega menu
- Home
- Mivo
- Advanced settings
- How do I update my theme?